It really is a myth that weight falls off while breastfeeding. I suspect that the woman who do drop loads of weight are the same woman who can usually eat whatever with no weight gain. I was really keen to loose asap after the birth and went on Jenny Craig when DS was 6 weeks old. I lost 8kg's in about 12 weeks I think without doing any exercise. It was GREAT! I was exhausted and not having to think about food was a lifesaver and I lost weight to boot I did wonder if the weight loss was just due to breastfeeding and if it would have been coming off anyway BUT since going off JC in January (I think) I have only managed to loose another 2kg's myself I still have about 7kg to loose to get to pre preg weight and I wish I could afford JC again!