A.L.
I don't know if this is an option for you but a few months after my baby was born I stopped eating meat. I had done a lot of reading and found that breastfeeding babies of vegetarian mothers are actually healthier and that many reputable Drs and organizations recommend a veg. diet for all stages of life, including pregnancy and childhood. I lost ten pounds in a month and a half. No, it wasn't pregnancy weight since I only gained 7 lbs. with this pregnancy. It just came off with no real effort on my part. I not only lost weight but had more energy, felt better, and slept better.
Hope this helps,
A.