You need to be examined by the gynaecologist 6 weeks after the delivery to ensure everything is healing well. If recovery is satisfactory, it is best to defer sex till at least 8 weeks after delivery. Reason - tissues are fragile and you may get infected easily or sustain a tear easily. Also, you may not be in a mental frame of mind to have sex.Depending upon the events during surgery (there may have been some problems), you should plan the second baby - certainly not before 2 years, so that you regain you health and the 1st baby is sufficiently grown to require less attention (especially no more breast feeding) from you.We advise not to lift heavy weights for at least 3 months after CS (max weight allowed is 3- 4 Kg- probable weight of a healthy new born).