Calculate late period online. How to calculate your periods correctly? Menstruation calendar, menstrual cycle - comprehensive information for women. What is the menstrual cycle

Ovulation and conception calendar is a universal and fairly easy-to-use service designed to calculate the menstrual cycle and the most favorable period conceiving a child. Its main task is to help a woman determine the days of increased fertility ( ovulation), during which conceiving a child most likely. At the same time, thanks to the calculation of the so-called “safe days”, ovulation calendar allows her to avoid unwanted pregnancy without the use of any medications or mechanical contraceptives. In order to take advantage ovulation calendar and calculate your own menstrual cycle (favorable period conceiving a child), fill in all the fields of the form below one by one. Registered and authorized users of our Internet portal can save their personal ovulation and conception calendar in the “favorites” section of your personal account and return to it later.


Enter the first day of your last menstrual period:

Number: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Month: January February March April May June July August September October November December Year: 2014 2015 2016 2017 2018 2019 2020

Average length of the menstrual cycle:

20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Duration of menstrual bleeding:

1 2 3 4 5 6 7 8 9 10

Duration of the luteal phase of the menstrual cycle:

5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 - by default the average duration of this phase is set

Your aim:


Number of calculated cycles:

1 2 3 4 5 6 7 8 9 10 11 12

Ovulation calendar and the most favorable days for conceiving a child

Ovulation- this is the process during which an egg that is mature and completely ready for upcoming fertilization leaves the ovary, enters the abdominal cavity and is then sent into the lumen of the fallopian tube. It was during this period that the probability conceiving a child maximum and is estimated at approximately 33%, which, of course, should be taken into account when calculating ovulation calendar and a woman’s planning for an upcoming pregnancy. After ovulation the egg is capable of fertilization ( conception) for 12-24 hours, while sperm after ejaculation remain active for 2-3 (and much less often 5-7) days. Considering this fact, the possibility of a woman becoming pregnant the day before ovulation is approximately 31%, two days before - 27%, and three and four days before ovulation- 16 and 14% respectively. In the same time conceiving a child six days before ovulation or the day after it is unlikely and even practically impossible. Usually ovulation occurs between the 14th and 16th days of the menstrual cycle under the influence of estrogens and pituitary hormones.

Ovulation calendar and sign of conception

One of the most reliable and important signs of the onset ovulation and favorable period for conceiving a child are changes in a woman's cervical mucus. First of all, under the influence of estrogens, the amount of secretions increases and their viscosity decreases. The next, no less important, sign of egg maturation should be considered a decrease in rectal (basal) temperature during ovulation and raising it the next day. At the same time, in order to more accurately calculate ovulation and conception calendar, it is recommended to take your temperature every morning at the same time for several months. Sometimes at the moment ovulation a woman feels pain in the lower abdomen, the nature of which can vary quite widely from weak and short-term to strong and very long-lasting. It should also be noted that on days ovulation Some women experience a peak in sexual arousal.

Ovulation and conception calendar is a diagram of the menstrual cycle, which marks the time of its beginning, end, as well as the ovulation. Full management calendar involves mandatory recording of periods of active sexual activity. Compilation ovulation and conception calendar it is necessary to start long before planning pregnancy in order to learn how to determine the moment as accurately as possible ovulation and become familiar with all the features of your own body.

Ovulation calendar and conceiving a child

Depending on the probability conceiving a child and time ovulation menstrual cycle ( conception calendar) can be conditionally divided into three phases: relative sterility, fertility and absolute sterility. The period of relative sterility begins with the appearance of bloody discharge and ends ovulation. During this phase, some difficulties with contraception may arise, since its duration sometimes varies within several days, even with a stable duration of the cycle as a whole. This happens due to the fact that periodically, depending on certain factors (external and internal), ovulation comes a little earlier or vice versa later.

The fertile phase begins from the moment ovulation and ends after 48 hours. At this time the probability conceiving a child as high as possible. As noted above, after leaving the ovary, the egg is capable of fertilization within 12-24 hours, the remaining half of the time is allocated to inaccuracy in timing ovulation. Following the period of increased fertility, the woman enters a phase of absolute sterility, during which conceive a child almost impossible. This period lasts until the end of the menstrual cycle and is about 10-16 days.

Ovulation calendar and calculation of the period of conception of a child

Most modern women expect ovulation and conception calendar in order to bring the long-awaited motherhood closer. Others are building calendar to protect yourself from unplanned pregnancy. However, no matter what goals they pursue, when calculating the menstrual cycle (and ovulation calendar in particular) in any way there is always a possibility of error.

According to the calendar calculation method ovulation a woman should record the start and end days of her menstrual cycles for at least six months. In order to determine your individual fertile period based on these data ( ovulation and conception calendar), it is necessary to subtract 11 from the number of days of the longest cycle (the last fertile day of the cycle), and 18 from the number of days of the shortest cycle (the first fertile day). So, for example, the longest cycle for a woman is 32 days: 32-11=21 (the 21st day of the cycle is the last in the fertile phase). Her shortest cycle is 26 days: 26-18=8 (the 8th day is the first in the fertile phase). In this case, the most favorable period for conceiving a child is the interval from the 8th to the 21st day of the cycle (13 days in total).

One of the best and more accurate methods of calculation ovulation and conception calendar child is a combination of the above methods, which is called the symptothermal method. It includes measuring basal body temperature, daily monitoring of cervical mucus and accurate calculation ovulation calendar and favorable period for conceiving a child calendar method.

Action of tests for calculation ovulation calendar based on the same principle as for diagnosing pregnancy. When interacting with a woman’s urine, two transverse lines appear on it, one of which indicates the normal performance of the test, and the second indicates an increase in the level of luteinizing hormone (LH) and the woman’s full readiness for conceiving a child. However, if the second line remains paler than the control line for several cycles in a row, this may indicate the absence of ovulation due to any disease (thyroid disease and hyperprolactinemia, obesity and exhaustion, polycystic ovary syndrome and infantilism, increased FSH levels and decreased estradiol levels, chronic stress, etc.) and is a reason to consult a doctor.

is a necessary application for every woman who has an Android phone or tablet. You no longer have to write down the dates of your menstrual cycle on pieces of paper or in a notebook, or calculate favorable days for conceiving a child. All you need to do is download Women's Calendar for free on your Android phone, enter the necessary data about your period, and the program will automatically calculate your personal ovulation calendar, monthly cycle and warn you about a possible pregnancy.

Screenshots Women's calendar →

Thanks to the nice design and features of this calendar, you will simply fall in love with it from the first days. The app can also be used as a diary, where you can enter data about your height, weight, medications, mood and other symptoms. You can download a free calendar with convenient monitoring of menstruation and ovulation for your Android phone or tablet on this page.

The monthly calendar gives you the following options:

  • Track your female cycle and ovulation days (fertile days).
  • Notifications about important milestones of the menstrual cycle.
  • Dozens of preset symptoms and moods for quick selection.
  • Ability to record any additional information.
  • Function for creating notes and reminders.
  • Plotting temperature and weight graphs.
  • Calculation of the average duration of the menstrual cycle for any selected period.
  • Built-in pregnancy mode.
  • Personal data protection system.
  • The application is entirely in Russian.

Free Women's period calendar for Android securely stores your data, but to prevent it from being lost if the gadget malfunctions, the program provides backup to email, phone SD card, or synchronization with a DropBox account. You can also send any data to your doctor using email, and synchronization with DropBox will allow you to use the application from several devices at once. If necessary, you can maintain several accounts at once in the Women’s Calendar, and it’s completely free. The full version of the Women's Calendar program for Android is available on our website, and you can download it for free without registration and SMS.

Knowing your menstrual cycle will help you make informed decisions about your health and family planning. Doctors often ask when the first day of your menstrual cycle is. The tips we provide below will help you determine this day.

Steps

Determining the first day of the cycle

    Understand what the menstrual cycle is. Menstruation begins in women when they reach puberty - at this time a woman becomes able to conceive a child. There are several phases in the cycle (follicular, ovulation, luteal), and the first day of the cycle marks the beginning of the luteal phase, in which the uterus sheds its lining through the vagina. This is how menstruation begins.

    Learn to determine the first day of your cycle. If you learn to count the days of your cycle correctly, you will be able to make better decisions about your health and family planning. To determine the first day of your cycle and its length, start numbering the days of your cycle starting with the first day of your period.

    Monitor your cycle for several months. If you do this from the first day of your cycle, it will be easier for you to track patterns and calculate the day your next period starts.

    Determine the first day of the next cycle. If you know the length of your cycle, it will be easier for you to predict the start date of your next period.

    Signs of approaching menstruation

    1. Know that premenstrual syndrome is normal. For most women, symptoms appear 1-2 weeks before the start of menstruation. As a rule, they go away with the onset of menstruation. Every woman reacts differently, so you should record your symptoms throughout your cycle.

      Be aware of possible changes in mood. On the eve of menstruation, many women become tearful, anxious, their mood changes dramatically or becomes depressed. A woman may also feel tired and irritable all the time. If your mood changes do not stop after your period starts, or if you feel that your mood changes are interfering with your ability to live a normal life, you should see your doctor.

      Pay attention to your digestive system symptoms. On the eve of menstruation, you may experience bloating, constipation, fluid retention and diarrhea. This can lead to weight gain early in your cycle. All these symptoms should also go away in the first 4 days after the start of menstruation. If this does not happen, consult a doctor.

      Notice the physical changes. Chest pain, joint and muscle pain, and headaches are quite common. You can take a simple pain reliever (ibuprofen, aspirin, naproxen).

      Know when to see a doctor. If you have five or more of the above symptoms and PMS is interfering with your daily life, you may have premenstrual dysphoric disorder. Your doctor may prescribe you antidepressants, strong analgesics, or Jess birth control pills.

      • Working with a psychotherapist will be helpful in treating premenstrual dysphoric disorder.
      • You should also contact your doctor if your symptoms do not go away when your period begins, or if the frequency or severity of your symptoms changes.

    Problems with the menstrual cycle

    1. Know when to discuss your cycle with your doctor. If you have questions about your cycle, talk to your gynecologist. It is also important to see a doctor if your cycle has always been abnormal or suddenly becomes abnormal. It is extremely important to consult a gynecologist in the following cases:

      Learn more about amenorrhea. Amenorrhea is the absence of menstruation. In women, menstruation should begin no later than fifteen years of age. If you or your daughter doesn't get her period before age 15, see your doctor.

      Find out if you have dysmenorrhea. Dysmenorrhea is a disease in which menstruation is very painful. Ibuprofen or similar medications may help relieve the pain, but if this continues to happen every time, you should talk to your doctor.

Every representative of the fair sex should have a calendar that helps to calculate the onset of the next menstruation. It is this thing that is irreplaceable and helps you always be prepared for the unexpected. The regularity of the menstrual cycle demonstrates the general health of a woman and her ability to bear children. An irregular menstrual cycle is the first symptom of obvious disorders in the body, for example, endocrine diseases, which is why you need to know how to calculate the exact day of the onset of menstruation.

Phases of the menstrual cycle

In order to calculate the onset of menstruation yourself, you need to know the phases of the menstrual cycle, which we will briefly discuss:

  1. First phase– menstruation or menstruation. Duration 3-6 days. It is from the first day of heavy bleeding, and not from slight brownish discharge, that you should start counting the menstrual cycle or indicate the date;
  2. Second phase– follicular. During this period, a new egg begins to mature. It is quite problematic to get pregnant during the follicular stage, as well as during menstruation;
  3. Third phase– ovulation. It is with this phase that the movement of the egg along the fallopian tubes into the uterus will begin. With a classic cycle of 28 days, this occurs on the 14th, so this is a good time for fertilization. The duration of ovulation is 2-3 days;
  4. Fourth phase– luteal. Duration is about two weeks. At this time, a large amount of steroid hormones is released by the corpus luteum for the implantation of a fertilized egg; when this does not happen, the first day of a new cycle begins.

Rules for maintaining a women's calendar for a woman

You can calculate when your period will start on your own, without resorting to modern devices. The classic duration of the menstrual cycle is 28-29 days, but the total duration can be 25-35 days. If the duration of your cycle differs significantly from standard indicators, you should contact a gynecologist. So, when you decide to count, first enter the date when your period started. The first day of the previous menstruation and the first day of the next is the menstrual cycle.

Calculating your cycle is important not only for your personal control, but also for tracking regularity and duration, since this is the first and main question at a doctor’s appointment. It is important to note each time the beginning and end of menstruation, as well as the days with the heaviest discharge and pain.

Reasons why you need to calculate your period date:

  • Hygiene purposes. When you have managed to calculate the date of your period in advance, you cannot be taken by surprise. On the day of the expected start of menstruation, the woman will be ready and armed with personal hygiene products;
  • Setting aside days for safe sexual intercourse or, conversely, for the most likely conception. Systematically keeping a monthly calendar will help you accurately determine the date of ovulation, when the most favorable opportunity for conception.
  • And for lovers of contraception, there is a calendar method, which will tell you when sexual relations are safest. On the days of ovulation, sexual intercourse should be stopped or other methods of contraception should be used. Thus, sexual partners provide themselves with the simplest natural contraception, which does not affect the health of women and men. To accurately calculate the monthly cycle, you should monitor the process of menstruation for several months in a row. This is necessary to determine the regularity of the cycle and accurately determine the phases.

Causes of an irregular menstrual cycle

When your cycle fluctuates between 21 and 30 days, you shouldn’t worry right away. Usually this situation happens when a girl has just entered puberty, and the menstrual cycle has not stabilized. Such an inaccurate cycle can occur for two years after the onset of the first menstruation (menarche). This often happens among older women, when the premenopausal period begins or immediately after childbirth.

The main reasons for cycle irregularity

Constant stressful situations;
Strong physical activity;
Nutrition poor in nutrients;
Diets and rapid weight loss, or rapid weight gain;
Various medications;
Change of environment;
Various diseases of the female reproductive system (inflammatory processes - colpitis, adnexitis, endometritis, etc.) and the endocrine system.

The female ovulation calendar, which is very easy to calculate, is necessary in order to determine the day for conceiving a child as accurately as possible. You can calculate the ovulation calendar online on our website using the service located on this page.


Ovulation is the process of release of a mature egg from the ovary. It is at this moment that a child can be conceived. During ovulation, the egg is in the second-order oocyte maturation stage.


Online ovulation calendar for conceiving a child


For women who are planning to get pregnant, an online ovulation calculator will help calculate the days of ovulation on the calendar to increase the chances of conceiving a child.


Some women may feel the onset of ovulation days that are ideal for conceiving a child, focusing on subjective signs. For example, some women and girls may experience pain in the lower abdomen or increased breast tenderness during ovulation days.



But if you think that this is too much, you can use a menstruation calculator or an online ovulation calendar, which will help you calculate the day of conception without any hassle.


Online ovulation calendar to determine safe days


Calculating the days of ovulation using the online conception calendar will be useful not only for women who are planning a pregnancy, but also for those who are protected by the method of interrupted coitus. In this case, by calculating the days of ovulation online using a calendar, you can determine the dates on which the conception of a child is most likely and avoid unwanted pregnancy.


In this case, it is worth remembering that although the egg lives only 12-24 hours after ovulation, sperm, after entering the woman’s body, can remain active for up to 5 days. That is, even though the online ovulation calendar calculates the day of ovulation, you must remember that pregnancy can occur even if you did not have intercourse on the day of ovulation according to the table.


How does the online ovulation calendar work?


The online ovulation calendar is compiled based on data about your menstrual cycle. But how are the menstrual cycle, which can be calculated using a period calculator, and the ovulation calendar related to each other?


A woman's menstrual cycle usually lasts 28-32 days: from the first day of her period until the first day of the next cycle. During this time, an egg matures in the woman’s body in the ovaries, which prepares for conceiving a child. At the same time, the inner lining of the uterus prepares for implantation of the embryo. If the child is conceived, and therefore implantation does not occur, menstruation begins.


Ovulation, according to the calendar, occurs approximately in the middle of the menstrual cycle, on the 14th day. In order to accurately calculate the day of conception of a child and create an ovulation calendar, you need to know the exact dates of the start of the last menstruation.


Now you know everything you need about ovulation and the menstrual cycle in order to calculate the ovulation calendar and the date of conception of a child online.