If you are on the 5th day of your period and your period has not cleared, you usually cannot have intercourse. If it is 5 days after your period has cleared, you can have intercourse. For women who normally have their period for about 7 days, it is usually not possible to have intercourse on the 5th day of the period and before the period has cleared. If a woman has intercourse during her menstrual period, she may suffer from excessive or reduced menstrual flow, prolonged or shortened menstruation, vaginitis, endometritis, endometriosis, etc. due to a decrease in her immune system. If a woman is on the 5th day after her period is completely clean, she is allowed to have intercourse. However, during the period of coitus, those who do not have the need to have children for the time being need to do a good job of contraception to prevent unwanted pregnancy. Women should also pay attention to appropriate moderation of coitus and avoid too frequent coitus. Pay attention to hygiene before and after sex to prevent infection. It is recommended that women make a comprehensive judgment according to their own actual situation to be able to have coitus. If there is back pain or abnormal vaginal bleeding after coitus, you need to consult a doctor in time to prevent accidents.