Pfffth.  You don't lose weight when you breastfeed if you eat more, period.  Breastfeeding my last one really messed with my hunger, and I could eat a 400lb man under the table.  I knew I'd pay for it (and I did), but until he was a year old, between work and running after the other kids, I didn't have the brain or willpower to deal with a completely derailed appetite, so I just made sure I didn't GAIN and worked on losing later.  I knew I COULD have lost weight by counting calories, but my hormones went whack and I was ravenous ALL THE TIME, so I just restricted myself so I didn't balloon and called that a win until the kid was older. BTW, I lost one kid's baby weight within 3 months, another within 6.