This is my third pregnancy. With my first, I gained 3 pounds total. He was 6 pound 8 oz. With my second I gained 7 pounds total (started my pregnancy 4 pounds lighter). She was 7 pounds 10 oz. With this one, at 30 weeks, I have gained 2 pounds so far. I'm guessing I'll end up right around where I ended with my other two. I eat well, whole grains, fruits and veggies, good quality protein, healthy oils (olive, butter, coconut, avacados, nuts, etc) and all full fat dairy, including cheese, whole milk and whole milk yogurt. I just don't gain much weight in pregnancy. My mom was the same way, and always left the hospital weighing less than she had when she got pregnant. My babies have been healthy and at healthy weights (I'm only 4'11", so babies on the smaller side are perfectly reasonable for me), so I don't worry about it. Worry more about what you're eating and trust your body to gain what it needs to.