I think I was just lucky in that my weight just plummeted when I was breastfeeding. I had only put on about 8 maybe 9kg during pregnancy and lost 20kg when breastfeeding (including what i'd put on). DS wasn't big but was back to pre pregnancy weight within weeks and believe me I was eating so much it wasn't funny. Good food but lots and lots of biccies etc too. However we had a horrific time trying to get breast feeding established - DS wouldn't feed milk went away etc etc - so I reckonmy body had to word super hard to produce milk hence the weight loss. I went back down to the weight I had been when I was about 23. Unfortunately once I stopped at 18 months bit by bit those damn kilos crept back on. At pre pregnancy weight now but would be happy to lose 5-6 kg.