I always thought I was one of those people who never lost weight when breastfeeding. But now I have concluded that its just because I have a bigger appetite, and put weight on as I was eating all the time.
I am still partially feeding (3 feeds a day) and have lost 16lbs (same as DS2 weighs!) in 6 weeks. I have never lost weight this quickly before, despite also being on 1300 calories a day (now and in previous diets) - could it be that those who don't loose while breastfeeding are those who have bigger appetite and hence eat more?