I lost 90lbs before I had my son and thought about going on the breastfeeding plan during my pregnancy and afterward, but chose not to. Needless to say, I'm back now and losing the weight again.
But...the breastfeeding plan is different. It has dairy on it among other differences. It's gonna give much slower weight loss, but thats alright. I'd say ask your center about it and they should show it to you. its definately something to consider.
We'll be having another one (not right now, I wanna lose some before we try) and I'll for sure use the menus. I'm done with this gain a bunch buisness.
Good luck!! Just a note...once you've lost weight, you're much more fertile. I had several docs tell me that.