In my last pregnancy they said 35 pounds was the amount you should gain over the course of a pregnancy. I gained exactly that much, and lost it all by, I think, the eighth week postpartum. I have sympathy for women trying to lose baby weight, but if you don't go crazy with "eating for two, tee hee!" and gain 50lbs it won't be hard to lose it--I did nothing special after 2 was born, no dietary changes or anything (though I did breastfeed, and kept doing it for 17 months). But in my first pregnancy I was stupid enough to believe and follow the WHAT TO EXPECT WHEN YOU'RE EXPECTING "Best Odds Pregnancy Diet," which includes ridiculous amounts of dairy (among other things) and had gained like 25lbs by the fourth month. I stopped following that crap at that point, but since most actual baby weight comes after that, I ended up gaining more than I should have and it took me like six months to lose it all. Fuck you, WHAT TO EXPECT. That book is full of sanctimonious bullshit anyway; I didn't even glance at my copy during pregnancy #2.