Although bodily changes differ from woman to woman, you can probably expect to see the most significant changes in your stomach and breasts. As your pregnant belly expands, so too does the surrounding skin. If your skin is not incredibly elastic, this skin may not fit your contours after you lose the baby weight. You may also discover that the weight comes off less quickly than before, with fat deposits clinging despite diet and exercise. Furthermore, your abdominal muscles may have separated due to pregnancy.
As for the breasts, they get larger while building functional tissue to help with breastfeeding. When nursing is over, however, the tissue atrophies and the breasts may be smaller than where they started. Sagging is also typical after breastfeeding.