Women can have intercourse after 5 days of menstruation. However, it is possible that a woman may be ovulating during this period, which is the danger period, so if she wants to get pregnant, she can have intercourse during this period to have a higher chance of getting pregnant. If a woman does not want to get pregnant, during this period should also pay attention to good contraceptive measures, during sex can use a penis condom or early placement of intrauterine device, can play a very good contraceptive effect, so after the menstruation clean need to have intercourse, must be based on the situation to choose the appropriate contraceptive methods. Under normal circumstances women have a regular menstrual cycle, on average once a month, the period is over in 3-7 days, ovulation mostly occurs in the middle of two periods, which is equivalent to 5-10 days after the clean period is the danger period, this time to do a good job of strict contraception.