S.C.
Pilates is great for toning but in some cases not even the highest levels of exercise can help. A tummy tuck is great but it's invasive so that's really up to you. Down time is pretty lenghty too. Liposuction could also be a component. Traditional lipo is very aggressive and the down time is even worse. There's something new called Smart Lipo. Much better results are common because it's more of a sculting mechanism, down time is very minimal (back to work in 48 hours) and you're awake and coherent for the entire procedure. Also, there's something called VelaShape by Syneron. It's a wonderful service that's FDA approved and totally safe and I can honestly say, the results are fantastic. So great in fact many OB/GYN offices are doing the service right in their practice postpartum. Also, you can purchase the service in a series from a medical spa. Finally, I would never recommend doing anything that isn't FDA approved.
If you need recommendations of doctors or further information, be in touch. I'm happy to help.