This is where i TOTALLY went wrong post-baby. She lays out diet and exercise for nursing moms. I know you have yo be careful not to over do it or you can hurt your supply, but she helps with that! Exercise Routine for Breastfeeding Mothers - This is some really good stuff!
Maternity Clothing Essentials to get you through all three trimesters. This all sounds like pretty good advice, and they go along with things I'm already doing. :) Gad to have my thoughts/plans validated!