With my first pregnancy, I suffered horrible morning sickness, and I ate everything in sight just so as not to get nauseous. I ended up gaining something like 40 pounds during my first trimester alone. The morning sickness lasted from weeks 6 to 12, textbook pregnancy. I am now 5 weeks pregnant, and I am DETERMINED not to gain that much weight this time around. Can anyone give me some advice on how NOT to gain weight, but have a healthy pregnancy and stave off morning sickness? I should add that I suffered badly of PPD after DD was born - I believe the PPD was exacerbated by my weight.