I'm beginning to get anxious about this. I am 12wks with TWINS, and despite having a big ol' pregnant belly, I have put on about 1.5lbs. That's it. I'm eating like crazy, trying to balance healthy food with high-calorie (lots of milk and cheese, peanut butter, pasta and meat along with my regular veggies and fruit). I know I need to gain more weight for these babies to be healthy, and I'm going to ask my OB about it when I see him Wednesday.