Calculate the exact date of ovulation online. Basal temperature chart. How to correctly calculate the date of ovulation with an irregular cycle

How long does ovulation last?

Ovulation is the release of an egg from the ovary into the fallopian tube as a result of the rupture of a mature follicle. Ovulation occurs in the middle of the menstrual cycle, i.e. With a 28-day cycle, ovulation occurs on day 14. After leaving the follicle, the egg remains viable for an average of 24 hours. Remember that these are just averages; deviations are common.

Signs of ovulation

• Increase in basal body temperature, usually from 0.5 to 1 degree
• Increased levels of luteinizing hormone (LH)
• Cervical mucus or vaginal discharge may appear clearer, thinner, and stretchier, like raw egg whites
• Breast tenderness
• Bloating

Pregnancy tips

Calculate ovulation days

The day of ovulation can be calculated using a special Ovulation Calendar. However, even in women with a regular cycle, deviations are possible. To better understand when you are ovulating, monitor your basal temperature and the consistency and color of your cervical mucus.

Have sex on fertile days

If you are planning a pregnancy, you need to consider that the egg “lives” for 24 hours after ovulation. Since sperm can remain motile in a woman's body for 2-3 days, the chance of getting pregnant increases if you have sex 1-2 days before ovulation or 24 hours after it.

After intercourse you need to lie down for 15 minutes. Myth or reality?

It has long been believed that you should stay in bed for at least 15 minutes after sex to give the sperm a chance to reach the egg. However, recent research disproves this theory.

Maintain a healthy weight

Research shows that being overweight or underweight can disrupt ovulation and affect the production of key hormones. A normal body mass index should be between 18.5 and 24.9. Also avoid intense exercise, as it can affect hormone production and lead to problems with conception.

BMI = Body weight / Height squared

Those. if your height = 1.70 m and body weight = 63 kg, then BMI = 63/(1.7*1.7) = 21.8

Down with stress!

Research shows that stress can make it difficult to get pregnant. Yoga, meditation and walking outdoors can help reduce stress and improve your overall well-being.

Take care of men's health

There is an opinion that the cause of infertility is only women's health. But, as studies show, more than 33% of problems with conceiving a child are associated only with the man, and another 33% are associated with both partners. Like women, men can improve their reproductive health by quitting smoking, limiting alcohol consumption and eating a healthy diet.

Do you want to conceive a boy or a girl?

Several theories claim that you can influence the gender of your baby by having sex at certain times of the month or in a certain position. However, there is no exact method for influencing the sex of your baby at conception.

An ovulation calculator is one of the ways to determine the most favorable days for conceiving a child. After all, conceiving a child, even for a completely healthy couple, is not always easy; if you don’t “get” on a favorable day, then pregnancy will not occur. Some people are luckier and pregnancy occurs quickly, while others have to wait several months. Our ovulation and conception calculator will help you calculate that exact time.

But keep in mind that the results obtained may not be entirely reliable. The female body is very mysterious, and sometimes phenomena that are not entirely clear to medicine occur in it. For example, ovulation can occur towards the end of the menstrual cycle or vice versa in the first third (whereas it should be exactly in the middle). There are often stories on the Internet from women who claim that they became pregnant on days that were absolutely safe in terms of the likelihood of conception. So, an online ovulation calculator should not be considered as an independent means of contraception. It is useful as an additional remedy for some categories of women.

As you know, today the most effective and efficient means of contraception are combined hormonal pills and the Mirena spiral. But, unfortunately, hormonal contraceptives have many contraindications and side effects. And not all healthy women are recommended to take them... For example, if a woman has only one healthy sexual partner, but sex life is not regular - 1-2 times a month, or even less often, then you can use safer methods - spermicides, and on dangerous days, as a supplement, also condoms. Dangerous days can be determined by doing some calculations. You need to know the length of your menstrual cycle. Moreover, if it is irregular, then you must first calculate the average value, taking the last 6-12 months as a basis. Next, we calculate exactly the middle of the cycle. This way we get the approximate day of ovulation. We add a week before and a week after - the so-called dangerous time. Thus, half of the month is “dangerous” for a woman, and half is relatively “safe”. If you don’t want to count on paper and trust software calculations more, our ovulation calculator is at your service - you can calculate favorable and unfavorable days for conception right now by entering some data.

Now about something more pleasant - about planning a pregnancy using an online calendar. Here mistakes are no longer so scary, even if they happen. Using the program presented on this page, you can calculate the days most likely for pregnancy. It turns out there are already 9 of these days, or even more! But with frequent sexual intercourse, the number of viable sperm becomes smaller, which means the chances of conception are lower. Better to save your energy. Therefore, we not only use an online ovulation calculator, but also practice the good old method - measuring basal temperature. If financial possibilities allow, we buy tests to determine ovulation. The onset of ovulation is indicated by an increased (above 37 degrees) basal temperature (taking into account possible factors other than pregnancy that could give such a reaction) and a positive ovulation test. You can also confirm the release of an egg from the ovary using an ultrasound examination. There are also subjective signs, such as increased sexual desire, pain in the lower abdomen or from the ovary and fallopian tube involved in the process, the appearance of transparent, rather profuse vaginal discharge.

If you only had part of the evidence of ovulation, but conception did not occur, do not worry. According to statistics, a very small number of couples succeed in getting pregnant in the first 1-3 months of trying. And doctors generally say that you need to start worrying if pregnancy does not occur for more than 10-12 months of sexual activity without contraception. The fact is that that most favorable day does not happen every menstrual cycle - so, calculating an ovulation calculator is only half the battle. To achieve quick results, psychologists recommend simply relaxing and stopping counting and calculating things, making love in certain positions and according to the clock, etc. Stress has too negative an effect on our body. So if you're in a rush to become parents, just go on vacation and enjoy each other's company! And the printed ovulation and conception calculator will then become for you one of the pleasant reminders associated with the period of planning a baby.

It may be hard to believe, but there is only one day in a month on which a woman can become pregnant. In exceptional cases, such a day occurs twice during one menstrual cycle, but in the vast majority of the “hour X” lasts only a day, and they are called ovulation.

On the day of ovulation, which we will now teach you how to calculate, a mature egg is released from its follicle. Within 24 hours she will wait for fertilization, and if she is unclaimed, she will die. Only 24 hours a month, and even then this is at best. It happens that ovulation does not occur, and even with a regular menstrual cycle, on average, women who do not experience any gynecological problems have 10 ovulations per year, that is, not monthly.

Girls who decide to calculate the day of ovulation for the purpose of contraception should be immediately warned: pregnancy will be very likely if you had unprotected intercourse a few days before ovulation, since sperm, unlike eggs, are more tenacious and retain the ability to fertilize for several days .

But if you are trying to calculate, then you should definitely know how to calculate the day of ovulation.

How to calculate the days of ovulation?

There is a very simple formula that allows you to calculate the day of ovulation at home without additional equipment. By the way, there are ready-made ones that simplify the task, but there is nothing complicated in the calculations anyway.

It has been found that ovulation in any woman with any length of the menstrual cycle occurs exactly 14 days before the start of the next menstruation. The duration of the first phase may vary, but the period after ovulation is constant. If your menstruation occurs regularly “number after number”, then calculating the day of ovulation will be easier:

Ovulation day = next menstruation date - 14 days.

A classic example: with a regular 28-day menstrual cycle, ovulation occurs on the 14th day of the cycle. If your period started on the 3rd this month, then with a 28-day cycle, expect ovulation on the 17th, 14 days before the start of your next period. If your cycle is longer or shorter, then add the length of the cycle to the first day of your last period (for example, 26 or 30). You will receive the expected date of your next period, from which you need to subtract 14 days, resulting in the date of ovulation in this cycle.

Actually, the calendar method of contraception is built on this principle.

Calculating ovulation is very simple, but it has one rather significant BUT: the method is applicable only for women with a regular cycle, and you should take into account the schedule for at least the last 4-6 months.

If you are trying to get pregnant and for this purpose are looking for how to calculate the day of ovulation, then the following advice will be useful for you. With a regular menstrual cycle lasting 26-30 days, the chances of conceiving a child increase significantly if you have intercourse every other day from the 10th to the 18th days of the cycle.

Can an ovulation calculator be wrong?

For couples, calculating ovulation is extremely important. However, this method cannot be considered highly accurate. The fact is that ovulation is very labile. Under the influence of a number of factors, even with a regular menstrual cycle, it can shift. This, in particular, can be caused by stress, overwork, colds, and hormonal imbalances. Moreover, in rare cases, ovulation can occur twice in one cycle, which should be especially remembered when using contraception. Well, it is not at all excluded that ovulation will not occur at all in this cycle. Therefore, experts recommend using methods for determining ovulation in a complex: focusing on your own feelings, keeping a chart of basal temperatures, using. And the most accurate would be an ultrasound examination, which can determine ovulation as reliably as possible.

Especially for- Elena Kichak

Female physiology is designed in such a way that the ability to become pregnant is available only 1-2 days a month. This most favorable period for conception for every woman is called ovulation. All internal genital organs are involved in this process, therefore, with various pathological disorders and disruptions of the menstrual cycle, ovulation may be absent.

Ovulation concept

Ovulation includes a number of processes that occur in a woman’s body in a certain sequence:

• the formation of a follicle in the ovary (this is repeated every month), in which the egg is located surrounded by a special liquid;
• maturation of the follicle to the desired size by the middle of the menstrual cycle;
• opening of the follicle and exit from it to the outside, into the abdominal cavity, and then into the lumen of the fallopian tube, the egg.

To be more precise, ovulation is precisely the moment when an egg that is already mature and ready for fertilization leaves the follicle. The life cycle of an egg when it is ready for fertilization is 24 hours.
Ovulation occurs against the background of certain hormonal changes in a woman’s body - 2 phases of the menstrual cycle:

• folliculin - maturation of the follicle;
• luteal – the time from ovulation to the onset of the next menstruation.

Before ovulation, namely 24 hours before it, the maximum level of luteinizing hormone (LH) in the body is observed. Its peak is ensured by an increase in the concentration of another female sex hormone - estradiol to a certain limit. The latter is produced by a follicle that grows in the ovary. As the concentration of estradiol increases, the endometrium also grows. After ovulation occurs and the follicle opens, a corpus luteum forms in its place. It is already beginning to secrete progesterone, which prepares the endometrium for future pregnancy. At the peak of estradiol, basal temperature (measured in the rectum) decreases, and when progesterone secretion begins, it increases.

The ability to fertilize an egg remains only for 12-24 hours, and for sperm from 2 to 4 days. Taking this fact into account, on the days of ovulation the probability conception the maximum is 33%, in the days following ovulation and 6 days before its onset this probability is 0%, 3-4 days before - 15%, 2 days before - 25%, 1 day - 31%.

Symptoms of ovulation

Considering that this process occurs hidden from the human eye, the signs of ovulation are subjective, that is, those that can only be observed and felt by the woman herself. Objective symptoms of ovulation are laboratory and instrumental methods for its study. The subjective definition of ovulation is based on the following changes in the body, which allow a woman to determine it independently:

• Vaginal discharge. Over a few days, there are more of them than usual, and they have less viscosity, which is due to the influence of estrogens during this period. Discharge after ovulation sharply decreases in volume and takes on the appearance of thick mucus.
• Pain during ovulation. A woman may feel a sudden sharp tingling pain that occurs in the lower abdomen on the right or left. This happens precisely during ovulation, when the follicle bursts. This symptom is not typical for all women.
• Sexual attraction. It may intensify 1 or 2 days before ovulation.
• Bleeding. At the moment of ovulation, very small (several milliliters) bleeding is possible, which does not in any way affect the process of conception itself.

All these symptoms of ovulation are observed on days 11-16 of the cycle, depending on its length. note: how many days ovulation lasts can only be found out using instrumental diagnostic methods, but there are other methods that are less reliable, but more accessible.

How to determine ovulation: the most effective ways

The need to calculate ovulation appears in a woman when she, or vice versa, tries to avoid it in order to calculate “safe” days. Today there are enough ways to determine this moment as accurately as possible. If you cannot do this yourself at home, then there are a sufficient number of laboratory and instrumental methods. In particular, the following diagnostic methods are used today ovulation:

• basal temperature;
• ovulation test;
• laboratory tests;
• ovulation calculator
• Ultrasound monitoring of ovaries, endometrium;
• ovulation calendar;
• endometrial biopsy.

Basal temperature

It is measured exclusively in the morning after sleep. Without getting out of bed, you need to insert a thermometer into the rectum for 5 minutes. The data is recorded daily and a basal temperature graph is built based on it.
In the days before ovulation, a decrease in basal temperature is observed, and immediately at the moment of its onset there is a sharp increase by 0.5 - 0.6 divisions of the thermometer.

Ovulation test

It is intended for use at home. To determine the exact day of ovulation, the test will have to be repeated more than once. It comes in the form of a test strip, which can be purchased at every pharmacy. This test responds to an increase in luteinizing hormone in urine. The peak of its concentration during a normal menstrual cycle is observed 24 hours before the onset of ovulation itself. This test should be performed 2 times a day, every day, starting a few days before the expected date. 2 stripes on an ovulation test indicate that at the moment the woman’s body is as ready as possible for conception. One line indicates that the test is working, and the second reflects the level of luteinizing hormone.
note: if the second line on the ovulation test is paler than the control line (repeated during each cycle), then this may be a symptom of lack of ovulation due to the presence of pathology in the body (usually hormonal). It should also be taken into account that normally 1-3 cycles per year can be anovulatory, and the older the woman, the more of them there are and this is not a pathology. If ovulation does not occur regularly, then this requires medical intervention, a full examination and treatment.

The ovulation test is not suitable for women who have the following conditions::

• irregular cycle;
• diseases of the endocrine system;
• chronic stress, against the background of which LH levels are often elevated, which can give a false positive test;
• polycystic ovary syndrome.

Laboratory tests

In their work, gynecologists use some functional tests to calculate the day of ovulation. They are inexpensive and accessible, but require the woman to visit the gynecologist several days in a row, which can be problematic. These tests are based on studying the characteristics of discharge fromvagina.

• Fern symptom. The doctor takes mucus from the cervix and places it on a glass slide. Due to the significant increase in potassium and sodium salts in it before ovulation, after the smear dries, the mucus crystallizes, forming a pattern in the form of a fern leaf.
• Distensibility of cervical mucus. A couple of days before ovulation, the discharge is white and stretches by about 1 cm; on the day of ovulation, it takes on the appearance of egg white and stretches by several centimeters. After ovulation, they become sticky, thick and very few in number.
• "Pupil" symptom. During the examination, the doctor notes a slightly open cervical canal.

The reliability of such tests in reality does not exceed 50%.

Ovulation calculator

Today there is a special program that helps determine the least and most favorable days for conception - an ovulation calculator. With its help, you can calculate ovulation for each woman individually, provided that she has a physiologically normal menstrual cycle (28 days). In order to use the calculator, you must enter 2 numbers: the date of your last menstruation (its first day) and the duration of the cycle itself. The program will produce ready results. The reliability of this method of determining ovulation is relative.

Ultrasound of the ovaries

This method is considered the most informative and allows you to obtain the following information:

• endometrial condition;
• growth of a dominant follicle;
• detection of the corpus luteum, which forms at the site of the former follicle, and parallel changes in the structure of the endometrium.

Ultrasound monitoring allows the doctor to accurately record the moment when the follicle enlarges and ruptures, that is, the very moment of ovulation. At the same time, the gynecologist always advises simultaneously keeping a chart of basal temperature and taking functional tests. Performing an ultrasound twice per cycle is enough to determine on what day ovulation occurs.

The first ultrasound is performed as close as possible to the expected day of ovulation, where the presence and size of the dominant follicle is determined. The second study is carried out based on the approximate day of ovulation based on the growth rate of the follicle. On average, it grows by 2 mm per day and reaches a maximum of 20-24 mm. At the same time, laboratory tests are prescribed for the level of progesterone and estradiol. Ultrasound is also often used as a diagnostic after ovulation stimulation to determine its exact date of onset.

Ovulation calendar

This is an individual scheme every woman's menstrual cycle. It marks the start and end dates of menstruation and ovulation. Also, such a calendar records the sexual acts that have occurred. Drawing up such a calendar will be useful not only for those who want to conceive a child, but also for those who do not yet have plans for motherhood (calculate “safe days”). This calendar is similar to an ovulation calculator, but it is compiled manually. With its help, a woman can independently learn over several cycles to determine the moment of ovulation, taking into account the characteristics of her body. It is necessary to record data in the calendar for at least 6 months before calculating ovulation.

note: The individual fertile period is calculated in this way: 11 is subtracted from the longest cycle, and 18 from the shortest. For example, 28-11 = 17 is the last day of a woman’s fertility (where 28 is the longest cycle), 26-18 = 8 is the first fertile day, where 26 is the shortest cycle. As a result, from 8 to 17 days of the cycle is the most favorable period for conception, since it is in this interval that ovulation occurs. Most women have a regular cycle of 28 days, with ovulation occurring on days 14-15. An example of an ovulation calendar with a cycle duration of 32 days:

Endometrial biopsy

This is an instrumental method for diagnosing ovulation. It is rarely resorted to only if other technologies are uninformative. During ovulation, namely in the middle of the luteal phase, the endometrium is transformed, that is, its secretory transformation occurs, and its presence is a sign of follicle maturation.

Ovulation and conception

A woman's menstrual cycle consists of 3 periods relative to the likelihood of conception:

Fertilization of the egg released from the follicle is possible only during ovulation. For this, the woman’s body is specially prepared:

• increased secretion of cervical mucus to facilitate sperm movement;

Every woman of childbearing age monitors her menstrual cycles. After all, the stability of this indicator indicates that everything is in order with women’s health. Ovulation is the shortest period of the cycle in which you can conceive a child. Therefore, women planning their pregnancy need to know the exact time of ovulation. Today the pharmaceutical market offers tests to determine the beginning of this period, we will tell you how you can calculate your ovulation period yourself without the use of external devices.

The main thing in the article

The concept of ovulation and its cycle

Physiologically, every representative of the fair half of humanity has about a million eggs in her body from birth, which “live” in the follicles located in the ovaries. When girls reach puberty, the surviving eggs (by this age there are about half of the original number left) begin to ovulate. Over the entire period of life, on average, women mature up to approximately 500 eggs prepared for fertilization. How does this happen?

It happens that during ovulation two or three eggs dominate. In such cases, after fertilization, a multiple pregnancy results.

The cyclicity of the arrival of menstruation is normal if it occurs stably with a gap of 22–34 days. The discharge itself lasts from 3 to 7 days. The first year or two after the start of menstruation, the cycle may be unstable, as the body adapts to new living conditions. After this period, menstrual cycles should be the same. If there are any malfunctions, this may indicate gynecological or sexual diseases/deviations.

Conventionally, cycles can be divided into 3 phases:

• follicular– when the egg matures inside the follicle;
• ovulation– the very process of the release of the egg from the follicle house and its movement, followed by waiting in the uterus;
• luteal– it begins counting immediately after the end of ovulation and lasts until the first day of the next menstruation.

When does ovulation occur after menstruation?

According to medical canons, ovulation usually occurs on days 10–16 of the menstrual cycle. Why such a discrepancy? The fact is that everything is very individual and directly depends on the menstrual cycle.

• So, in women who have a 21-day “break,” the egg matures +/- on the 10th day.
• For those whose “break” exceeds 30 days, maturation can occur even after the 15th day from the start date of the previous menstruation.
• On average, an egg is considered ready for fertilization at about halfway through the menstrual period.

Such figures are indicative of stable menstrual cycles without failures. For those who have abnormalities (menstruation does not come on time), it is quite difficult to determine the range of egg maturation.

It should be noted that in women with 12 cycles per year, in two of them the egg does not mature. This ovulation period is called “single”. With age, such idle periods become more and more frequent.

Methods for calculating ovulation at home

With stable menstrual cycles, every woman can calculate the ovulation period herself. There are many ways, but we will consider the most popular and most truthful. These include:

• Calendar method.
• External symptoms and well-being of a woman.
• Tests (one-time or electronic) for ovulation.
• Method for measuring basal temperature.
• An innovative method of detection using saliva.

How to determine ovulation by its signs without tests and analyses?

It is conventionally accepted that signs of ovulation exist. They are divided into objective and subjective. TO objective relate:

• change in basal temperature;
• vaginal discharge.

We'll talk about them in more detail below.
TO subjective can be attributed:

• mild pain (tingling in the lower abdomen) during the bursting of the follicle;
• increased sexual desire.

How a woman feels during ovulation

In addition to the aforementioned possible tingling pain in the lower abdomen, the following symptoms may be present:

• headache;
• swelling of the mammary glands;
• increased emotional stress;
• noticeable irritability;
• tearfulness;
• some have swelling;
• The sense of smell and taste may become more acute.

Determining ovulation after menstruation using the calendar method

This method is suitable for women with a stable menstrual cycle, since the calculation will be based on the days of menstruation and the break between them. As already noted, the cycle has from 25 to 36 days (break + days of menstruation). On average, it is generally accepted that Ovulation occurs 2 weeks before the start of the next cycle . Therefore, based on these 14 days, the ovulation period is calculated as follows.

If the cycle period is 30 days, then subtracting 14 days from them, we get 16. In other words, ovulation should occur on the 15th, 16th, 17th day after the end of menstruation.

When calculating the days of ovulation, if you are planning to conceive, keep in mind that sperm in the female genital organs can live up to 4 days.

How to calculate ovulation using an online calculator?

Online calculators that can be found on the Internet are based on the calendar method, according to which 14 days are subtracted from the main cycle and the day of ovulation is displayed. Typically, to calculate indicators, the following data is entered that you should know:

• the days of menstruation itself, how long they last;
• duration of the entire cycle;
• date of the first day of menstruation, which was the last time.

After entering these parameters, the online calculator will calculate the possible days of the ovulation period for the period of time that you specify (3 months, six months).

Measuring basal temperature to determine ovulation

To draw conclusions about the days of the ovulation period, it is necessary to measure the temperature for at least three menstrual cycles in a row.

It should be measured in the morning, without getting out of bed - record the thermometer readings and make a graph. It looks something like this.


If you look at the graph, you will immediately notice how the basal temperature changes during different periods of the cycle. The upper indicator of the graph (over 37°C) is the beginning of ovulation.

This method of observation is considered more effective, in contrast to calendar calculations. By making 3 or more temperature graphs by cycle, you can derive a pattern - on which day ovulation occurs individually for you.

Visual determination of ovulation (evaluation of discharge)

After the end of menstruation, estrogen levels are low, which contributes to the absence of discharge. This period is conventionally called dry. This happens because cervical mucus is very thick. It closes the cervix, forming a kind of plug.

As the day of ovulation approaches, estrogen levels increase, which changes the consistency of cervical mucus. It becomes thinner, more sticky, sticky. The color becomes creamy, the discharge has the following characteristics:

• jelly-like consistency;
• come out in small quantities;
• have no smell.

When the egg matures, the cervical mucus thins. During the rupture of the follicle, a discharge similar to the white of an egg is observed: transparent, viscous and a lot of it.

Saliva analysis to calculate ovulation: a non-standard method

Modern medicine does not stand still and today, whether ovulation has occurred can be determined by saliva.

The method is based on the physiological characteristics of the female body, namely: with an increase in estrogen levels, the salts contained in saliva crystallize.

According to the cycle, you can observe:

• in the follicular period - a picture in the form of dotted lines;
• during ovulation – you can see the shape of a fern leaf in the crystallizing salts;
• during the luteal phase, transverse lines are added to the dotted lines.

Salt crystals are examined using special modern instruments.


The following options are suitable for home use:

1. "Your Cycle"– the device performs the functions of a microscope. For diagnosis, saliva is applied to a glass slide and examined with a magnifying glass.
2. "Maybe-MOM"- small microscope. According to manufacturers, it determines the period of ovulation with an accuracy of up to 98%. Saliva is examined in the morning before brushing your teeth.
3. "EVA-TEST D"– the device is equipped with a computer data processor that examines saliva and displays the readings on the screen. This device resembles a small home laboratory.
4. "OVU - test"- a universal device that can determine the ovulation period both from saliva and secretions.

Such devices are considered accurate and easy to use. The advantages include the possibility of their reusable use. The devices are ideal for women with irregular cycles who find it difficult to calculate the time of ovulation using the calendar method or the method of monitoring basal temperature.

Determining ovulation using a one-time test

Today it is quite possible to purchase special tests at the pharmacy that show the beginning of the ovulation period. Externally and according to the principle of operation, they resemble pregnancy tests. These are paper strips sold in packs of 5.

You should start doing tests depending on your cycle. So, with a 28-day break, the first test should be done on the 11th–12th day after menstruation. The result is compared with the control strip on the test:

• if it matches the control in color, then ovulation will occur in the next 12–36 hours;
• if the result is paler than the control, then the test must be repeated the next day.

Reusable tests to determine ovulation

Multi-use ovulation tests are also available at most pharmacies. Their principle of operation is the same as that of disposable ones. They determine the increase in luteinizing hormone on the eve of follicle rupture.

The test is a sensitive device that displays the answer on the screen. Unlike disposable strips, there is no need to compare color to a reference value. The microcomputer processes the information, producing a positive or negative result.

Reusable ovulation tests are considered a new generation of ultra-precise devices.

The most accurate way to calculate ovulation

The most accurate way to determine ovulation is folliculometry. It is carried out using ultrasound. The patient comes for the first time to observe the growth of follicles on the 10th day after the end of menstruation. Afterwards, he visits the ultrasound room once every two days until a diagnosis is made - ovulation.

What to do if ovulation does not occur?

As mentioned above, ovulation does not occur in every cycle, and this is normal. But if the absence of ovulation is recorded for several cycles in a row, then this is considered a problem that needs to be solved.

If ovulation is absent or occurs very rarely, then stimulation will come to the rescue. It is performed provided that the woman has tubal patency, since stimulation in case of obstruction of the fallopian tubes can lead to ectopic pregnancy.

This procedure is carried out by a doctor, taking into account the woman’s age, as well as test results and possible diseases leading to the absence of ovulation. Hormone therapy is usually carried out - hormonal drugs are prescribed. As you take it, the growth of follicles is monitored by ultrasound. When the dominant follicle is clearly identified, a drug is used to induce ovulation.

Stimulation using medications is considered one of the most effective ways to get rid of infertility.
Stimulation can also be carried out using traditional methods. These include:

• taking a decoction of sage or red brush. These herbs promote the growth of the endometrium and stimulate the maturation of the egg. You need to drink them in the first half of the cycle;
• then take a decoction of boron uterus (second half of the cycle). It promotes the production of progesterone, which is necessary to maintain pregnancy.

Before stimulating ovulation using traditional methods, you should consult a doctor, as self-medication can lead to hormonal imbalance, which will harm women's health.