Can you get pregnant if you have sex before your period?

I believe that women with common sense of physiology know that in order to avoid infection and gynecological diseases, you cannot have sex during menstruation. So is it possible to have sex before menstruation? Generally speaking, as long as it is not during the menstrual period, sexual intercourse is fine. If the menstrual cycle is normal, you do not need to use contraception during the first three days of the menstrual period. Next, let me give you some detailed knowledge about this aspect.

Women can have sex before their menstrual period, but they should avoid having sex during their menstrual period. Having sex during their menstrual period will not only cause women some gynecological diseases, but also may cause urethritis in men because the women's menstrual secretions enter the men's urethra. Therefore, it is best not to have sex during the menstrual period.

For women with normal menstrual cycles, the ovulation period is generally around the 14th day of the menstrual cycle. The 4 days before and 5 days after ovulation are the dangerous period for women, and the chance of getting pregnant during this period is relatively high.

However, the first five days and last four days of menstruation are safe periods. The chance of pregnancy during this period is relatively small. If you have sex in the first three days of menstruation, the chance of pregnancy will be even smaller. Therefore, if the menstrual cycle is normal, you do not need to use contraception if you have sex in the first three days of menstruation.

Is there any relationship between pregnancy cycle and menstrual cycle?

The gestational age is the period from conception to birth. Pregnancy (also known as gestation or pregnancy) refers to the presence of one or more fetuses or embryos in the body of a female mammal (including humans). Human pregnancy is the best studied of all mammals.

Since it is difficult for every pregnant woman to accurately determine the time of conception, medical regulations stipulate that the expected date of delivery is calculated from the first day of the last menstrual period. The entire pregnancy period is 280 days, or 10 gestation months (each gestation month is 28 days).

Pregnant women gave birth between 38 and 42 weeks of gestation, all of which were full-term. Since the length of each woman's menstrual cycle is different, it is normal for the estimated due date to differ from the actual due date by 1 to 2 weeks. Therefore, there is a certain relationship between the pregnancy cycle and the menstrual cycle, which is reflected in the calculation of the expected date of delivery.

How to calculate the pregnancy cycle

From a physiological point of view, it refers to the time from the first day of the last menstruation to the present. That is the number of days of pregnancy. This should be relatively easy to calculate, but it is actually not that accurate. The main reason for this calculation is that conception is possible before or after the last menstrual period, and some women already have a baby before the last menstrual period. Of course, most of the time conception occurs about 15 days after the last menstrual period.

The second method of calculation is as follows: From the perspective of embryology, in short, it is to subtract 15 days from the number of days calculated above. In fact, this is the real time of conception that I just mentioned. Because this time is the actual ovulation period, of course this calculation is only limited to women with regular menstruation.

To sum up, women can have sex before menstruation, but in order to avoid introducing bacteria into the uterine cavity and causing intrauterine infection, having sex during menstruation should be prohibited. You can have sex before your period, but you need to be aware that having sex during this period does not guarantee pregnancy, so it is best to take contraceptive measures.