How to tone stomach muscles after pregnancy?
Here are some exercises suggested by tonethatstomach.blogspot.com
Lie down on the floor. Place your hands under your butt. Raise your right leg up about 10 inches, or as far as you are comfortable and hold for a moment. As you bring your right leg back down, raise your left leg to the same level. Repeat this process about 10 times for one set. Do 3 sets.
Lie down on the floor with bent knees and feet on the floor. Rest your hands below and off to the sides of your navel. Using each hand, press two of your fingers into the lower part of your stomach. Gently "suck" your lower abdomen in towards the floor, as though your belly button is tied to a string and is being pulled towards the floor. Stay as still as possible - don't move your hips, don't hold your breath, and don't stick your chest out. As soon as your stomach muscles feel tight, stop sucking your stomach in. Don't overdo it - the movement doesn't require too much effort. Hold this position for 10 seconds and repeat the process 10 times.
You can do these anywhere, and they're great for strengthening your pelvic floor. Just hold your vaginal muscles in as though you really have to pee but have to hold it in. See if you can work up to contracting the muscles for 10 seconds at a time. Try to do about 30 of these a day for optimal results.
Lie down with your knees up. Slowly lift your pelvis up towards the ceiling, while keeping your upper body on the floor. Hold the position for a second, and then bring your pelvis back to the starting position. Repeat this process about 10-15 times for one set. Do about 3 sets.
It takes time for your body to recover after pregnancy. Breastfeeding helps. and you can enroll in postpartum yoga classes or do some sit ups, and cardio.