Childbirth can really affect a woman’s body, including how she feels about herself. One of the most common complaints is the fact that her abdominal skin has stretched so much during pregnancy that it can’t snap right back into place. Another common complaint is that the muscles in the abdominal area become lax and separate, which gives you a protruding abdomen (no matter how many sit-ups you do)! Pregnancy and breastfeeding can also change your breasts. Most breasts tend to sag after a mother is finished nursing.