If there is no abnormality after 42 days postpartum checkup, you can have intercourse even if you don’t have menstruation, and at the same time pay attention to contraception, it is not recommended to have intercourse before 42 days postpartum. Regardless of whether it is a normal delivery or a cesarean section, it is recommended to have a postnatal checkup 42 days after delivery. If the incision has healed, there is no vaginal bleeding, the uterus can be restored, and the general condition of the body is good, then you can have intercourse, even if you don’t have your menstrual period, there is still a possibility of pregnancy, so you should pay attention to contraception when you are having intercourse. Postpartum menstruation usually resumes 6 weeks after delivery, breastfeeding can delay the onset of menstruation, exclusively breastfeeding mothers, can be several months or even 1 year after delivery, ovulation before the return of menstruation, even if the menstruation has not resumed, there is still the possibility of conception, need to pay attention to contraception.