The medical term "menstrual cycle" means certain changes in the female body that occur cyclically in the organs of the reproductive system. During the cycle, a period begins when every woman has menstruation - rejection of the endometrium (the functional layer of the uterus), which manifests itself in the form of bloody discharge. The first day of the menstrual cycle is the day the menstruation begins, and in total the cycle lasts an average of 28 days, although for different women this period may be longer or shorter.
Conventionally, the female cycle is divided into "dangerous" and "safe" days - as the name implies, in the first woman has the opportunity to become pregnant, in the second there is no such danger. There is a high probability of pregnancy during ovulation, when the egg leaves the follicle completely ready for fertilization. In this regard, it is very important to know how to calculate the menstrual cycle - this is necessary not only to safely have sex without risking the conception of a baby, but also to prepare for this conception if pregnancy is the main goal of a woman. However, it should be remembered that calculating the days of the cycle can be quite difficult, since not all women can be stable.
It must be said right away that a woman can recognize her “dangerous” and “safe” days only in order to warn herself of an unwanted pregnancy. For all other cases, this method of contraception is not desirable - during unprotected sex, there is a danger of suffering from sexually transmitted diseases. If a woman has only one sexual partner, then it is quite possible to limit contraception and control over her cycle. If the menstrual cycle is lost, any changes occur in the body, which clearly symbolizes the need to consult a doctor.
How and how to calculate the menstrual cycle most successfully? There are several ways to do this, and each of them can be used equally successfully. Modern women more and more often prefer to use computer technology, especially since there are many corresponding programs that contribute to this on the Internet. Such technical developments help not only to correctly determine the time of onset of ovulation, but also to calculate the time of birth in the event of pregnancy, determine the gender of the unborn baby and track the time of onset of premenstrual syndrome. Even gynecologists note the convenience of such modern means - the results can be quickly printed and brought with you to the reception.
You can do the calculations yourself and manually. Before calculating the menstrual cycle, you will have to monitor your health for six months to choose the shortest and longest cycle. The number of days should be counted from the first day of the start of one menstruation to the first day of the next. After this, from the number of days of the longest and shortest menstrual cycles, you will need to subtract 18 and 10 days, respectively. The first digit will indicate the number of "safe" days at the beginning of the month, the second - the same at the end. The period between them can be considered favorable for conception - at this time the onset of pregnancy is most likely.
Another method that can be considered one of the most effective for those who want to know how to calculate the menstrual cycle is to regularly measure basal temperature. This method - the scheduling method - is considered by doctors to be the most accurate. If you measure the temperature throughout the month, you can see that in the first days of the cycle it is kept at 37 ° C, every day it drops to 36.6 ° C, and after another day it rises again to 37.5 ° C. At the same level, the temperature remains until the very end of the menstrual cycle, slightly decreasing before the onset of menstruation. In the event of pregnancy, the thermometer will show the same high value as in the middle of the cycle, and if the temperature did not rise at all, then any day can be considered “safe”.