When I had my first baby, I had a cut which was stiched. We resumed sex at about 8 weeks. It did sting a bit, but after that got easier. The main problem was that I would spurt milk everywhere, which we both found very funny. Also, finding the time when you are not too knackered, and the baby is asleep, isn't easy. To be honest, it was something I could have done without at the time. It was infrequent and part of why I did it was to keep the closeness there, and so that my husband didn't feel pushed out. My midwife said that there was no possibility of the stiches coming apart at that time, and that gentle lovemaking would help exercise the muscles, and aid recovery.