Sex after giving birth. Although there is no required waiting period before you can have sex again, many recommend waiting to have sex until four to six weeks after delivery, regardless of the delivery method. The risk of having a complication after delivery is highest during the first two weeks after delivery. In addition to postpartum discharge and vaginal tears, you might experience fatigue, vaginal dryness, pain and low sexual desire. If you had a vaginal tear that required surgical repair, you might need to wait longer.