Menstrual Calendar: Find Out How to Calculate Your Menstrual Cycle

menstrual calendar can be very useful in any woman’s life. Through this it is easier to calculate and understand each period of the menstrual cycle and, thus, to know the dates of ovulation and menstruation.

Of course, not all women have a regular menstrual cycle, so it is common for there to be some variations. However, in general, the menstrual calendar helps to have a better perception of each phase of the month and even of how the cycle will be in the following months.

This helps you to organize your life, namely to plan trips, social events, romantic nights or other occasions when, for some reason, you do not feel comfortable when you are menstruating.

Another situation in which the menstrual calendar can help a lot is related to the calculation of the fertile period, either for those who do not intend to become pregnant or for those who want to know the best days for those who want to “make a baby”.

To help you with all these questions, we have written this article where, among others, we discuss in detail the functioning of the menstrual calendar, helping you to correctly calculate the dates of the period.

Read Also: 15 Common Signs and Symptoms of Pregnancy

How does the menstrual calendar work?

To start doing your menstrual period calculations, you first need to know what the first day of your last period was. It is important to note this date since it is easier to understand the complete cycle from it.

As a general rule, the calculation is done for a 28-day menstrual cycle. Example:

  • The last menstruation started on December 1, 2020 and lasted for five days.
  • The next six days are part of the so-called post-menstrual period, with no specific event. These are the quietest days.
  • Then the ovulation period begins, which lasts approximately five days. In this period the woman’s fertility is higher and, therefore, are the best days for those who intend to become pregnant – being known as the fertile period. Those who do not want to take this risk should pay more attention to prevention or even avoid relationships, if they do not use contraception, during this period.
  • After that, the premenstrual period begins, which for many women is a phase that may be accompanied by some unpleasant symptoms, such as irritability, tenderness, swelling and others.
  • Then a new period comes, which for some women causes symptoms such as cramping and other pain.

Sample menstrual calendar:

DatePhase
December 1First day of menstruation
December 1st to 5thMenstrual period
December 6th to 11thPost-menstrual period
December 12th to 16thOvulation
December 17th to 28thPremenstrual period
December 29Date of a new menstruation

Menstrual cycle and calendar considerations

As already mentioned, the menstrual calendar works best for women who have a regular menstrual cycle. However, as each woman’s cycle is unique, results may vary.

This means that for many women the dates may not be very accurate, as some have a shorter period, 2 or 3 days, while others have periods for up to 7 days.

Anyway, the rule is that after menstruation ends the post-menstrual period and, a few days later, ovulation. As a general rule, 14 days after the date of the start of menstruation, the maximum point of ovulation is reached, which can extend from 3 days before and 3 days later, for a total of 6 days.

The most important thing is that each woman starts to observe her cycle and even make notes of the dates each month so that she can better understand how her own body works. These notes help to know if the cycle is regular or irregular.

In women who take contraceptives for oral use (pill) the cycle is usually very precise, with menstruation happening every 28 days, but with the difference that there is no ovulation period, since the purpose of the medication is exactly to make this does not happen, preventing pregnancy.

Read Also: Sexual Intercourse And Menstruation – What You Need To Know

Menstrual calendar applications

A simpler way to calculate your menstrual calendar is to download mobile applications created for this purpose. These menstrual calendar applications make it easy to know how to calculate your menstrual cycle, from the date of menstruation and, from there, inform about each phase of the period without needing to make new notes or calculations.

Most menstrual calendar applications are available for free. In addition to basic information about the menstrual cycle, each offers different features, such as: weight control, recording of symptoms (such as cramps or mood swings), notes on sexual intercourse, among others.

However, as a general rule, basic information is already sufficient to help women in controlling their menstrual calendars.

If you have been asking to know how to calculate your menstrual cycle, check out some menstrual calendar applications :

  • Clue (Android and iOS)
  • Period Tracker Period Calendar (Android and iOS)
  • Flo (Android and iOS)
  • Glow (Android and iOS)
  • Womanlog (Android and iOS)
  • Maya (Android and iOS)
  • OvuView (Android)
  • LoveCycles (Android and iOS)
  • Menstrual Calendar / Period Tracker (Android and iOS)

With these applications or even manually doing the calculations presented above, we hope it has become a little easier to know how to calculate your menstrual cycle or your menstrual calendar.

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