Nope. Not the case for me. But I wasn't expecting it to. My body holds onto weight like there is a famine coming any second. I'm pretty sure that I lost most of my pregnancy weight (I don't own a scale though, so I'm not sure). But I was already way overweight to begin with and breastfeeding has not done anything to dip down below my BFP weight...again this is all a guess, but my pant size hasn't changed so I'm assuming my weight is mostly stable.