Normal women of childbearing age usually have a period once a month, from the beginning of the current period to the first day of the next period, called a menstrual cycle. In terms of contraception, a woman’s menstrual cycle can be divided into a menstrual period, an ovulation period and a safe period, which has a relatively low chance of pregnancy. If you have sex right after your period, you will not get pregnant. Because the period has just ended, it is a safe period, during which no eggs are emitted and therefore pregnancy is not likely. However, it is not advisable to have sex just after your period to avoid gynecological infections, and you should wait until your period is completely clean. If you do not intend to get pregnant, it is advisable to have intercourse during the safe period, and at the same time do a good job of contraception, you can use condoms to prevent pregnancy. Also pay attention to sexual hygiene, before and after each intercourse, both men and women should wash their vulva to avoid gynecological infections. In addition, some women have short menstrual cycles or often irregular menstruation, ovulation will be early, even just after the end of menstruation has already ovulated, because the female egg has the ability to fertilize within 24-48 hours, if the male sperm into the uterus, into the fallopian tube, does not exclude the possibility of pregnancy just after the end of menstruation.