Menstruation and intercourse after giving birth
If you will be breastfeeding, you can expect menstruation to be delayed for as long as your milk flow is strong. Your period might not occur normally for the first two to three episodes and may take a while before it regulates. The first flow may be heavier or lighter and may not last as long as your usual periods. However, do not presume that because you are not yet regularly menstruating, you will not get pregnant. Even if you do not menstruate, you are already ovulating. Breastfeeding is said to prevent ovulation, but this is only as long as your milk production is steady, the milk flow is strong, and your baby is fed breast milk exclusively. However, you can still ovulate even if you are breastfeeding.
The resumption of sexual relations is strictly up to you. Your doctor will advise you to refrain from sexual intercourse at least until the cervix and uterus has returned to normal which is about six weeks after delivery. This is to prevent infection. An episiotomy and decrease in vaginal wall lubrication (caused by secretion of hormones during breastfeeding) could make sex a bit uncomfortable. Whatever your decision is, talk to your partner about it.