5 days after the end of menstruation can have intercourse, although 5 days after the end of menstruation to have intercourse is in the safe period, but there is also the possibility of pregnancy, there is no absolute safe period. Because a woman’s ovulation will be affected by many factors, such as emotions, environment, diet, etc., even if you have intercourse during the safe period, there is still the possibility of pregnancy, only the possibility of pregnancy is relatively small. Women must take contraception when having sex, if not take contraception, it is recommended to take emergency contraceptive pills within 3 days after having sex to prevent pregnancy, no matter when it is recommended that women should take contraception, because there is no absolute safe period.