How to calculate a woman’s menstrual cycle

　　Normally female When friends confirm whether they are pregnant, they first calculate based on menstruation. So how is menstrual period calculated under normal circumstances? Is there a fixed cycle? Of course there are, but everyone's physique is different, as well as other aspects of physical fitness and conditions are different, so the cycle is also different.

　　A complete menstrual cycle usually starts on the first day of menstruation and continues until the first day of next menstruation. Such a cycle is called a menstrual cycle. Normally, the menstrual cycle is based on one month, but in fact this is just a general overview because it varies from person to person. What we are talking about now is just a theoretical statement.

　　Why do you say it varies from person to person? Because each menstrual period is different, usually it lasts about a week, so there is a big difference within this week. For some people, it may be ten days on the right, while for some people it may be almost five days on the left. After the end of the menstrual period, usually one week later, the ovulation period arrives. Ovulation is a normal phenomenon that every developing female friend will have. As long as women have menstruation, they will basically ovulate. This is also to prepare for pregnancy. If there is no ovulation, then pregnancy will not occur.

　　We often talk about a safe period and a dangerous period. This statement is also calculated based on the ovulation period, because only when ovulation occurs can a female friend become pregnant. It is also the day when it is easiest to get pregnant, which is what we often call the dangerous period. Ovulation is actually an instant process, but because cells in a woman's body move relatively slowly, they will not die quickly. The survival time in a female friend's body is about two days. Of course, this is only about a time, and some exceptions are not ruled out. Therefore, female friends who are not planning to become pregnant should still take safety measures to avoid unwanted pregnancy and causing certain damage to the body.

　　If the egg cell is not fertilized, it will be absorbed by the body. After that, usually two weeks later, the second menstrual period will come again. In this case, it will be almost four weeks, which is one cycle! From this scientific theory, in addition to the ovulation period, there is also the menstrual period, so the other times can be said to be safe periods, that is, under normal circumstances, pregnancy will not occur without contraception during sexual intercourse. But let me tell you, this is not absolutely safe, because in real life, the particularity of each of our human bodies, as well as various environmental factors, lead to changes in ovulation and menstrual cycles, and even the safe period is no longer safe.

　　Take the menstrual cycle as an example. Many female friends’ menstrual cycles are not very accurate. In this case, it is relatively difficult to calculate the ovulation period, because the structure of our human body is really very complex, very magical and mysterious, and there are too many factors that affect it! For example: changes in mood, changes in weather, changes in environment, stress in life, etc. Research has found that some women may ovulate when they are very excited.

　　Menstruation is a unique phenomenon for female friends, but some slight factors may affect the changes in the body, causing certain changes to not proceed as planned. Therefore, here, I would like to remind everyone again that the safe period is not necessarily absolutely safe.（99healthy Special article on the website (www.99.com.cn). If you need to reprint, please indicate the source. )