Exercise is the only answer. Aerobic is good for general cardiac health and calorie loss but you will need specific exercises( crunches esp. on an exercise ball are great for the abs) and weight training for building muscle and firming your body. Years ago, when my son was a baby, I used to put him in the stroller and push him while I mall walked early in the a.m. for aerobic exercise. As he got a little older, I used to pack a lunch box with munchies and books, etc. to keep him busy as we walked. Good luck!