If you have intercourse on the day after your period has just left, you will generally not get pregnant, but there is a very small chance that you may get pregnant. Women with normal menstruation usually have a menstrual cycle of about 28-30 days, with a duration of 2-8 days. If you have intercourse on the day after your period has gone, the follicles have not yet grown to a dominant follicular state, and ovulation will not occur. Without an egg, even if you have intercourse, a fertilized egg will not be formed and you will not get pregnant. However, if the woman’s menstrual disorders, shorter menstrual cycles and longer menstrual periods, it is still possible that ovulation occurs on the second day of menstruation, and then intercourse may lead to pregnancy. This is still relatively rare, but it cannot be absolutely ruled out. So if you are not planning to get pregnant, you should use contraception whenever you have sex.