I hate to be the killjoy but BF was no answer for me with weight loss. I gained 20kg with DS from 72-92kg. I got back to 80kg reasonably easily but I only got back to 72 at the start of this year and DS is 3! And that was only when I really decided to work at it. I just wasn't one of those people for whom the weight dropped off easily. Sounds like I'm the exception though! This time I've been a lot more careful but have still put on about 14kg. I will be trying hard to eat sensibly and lose it early on as I'm about to turn 40 and know it will be harder to get off.