What to do if I want a small baby so I don't get too fat during pregnancy. How can I choose my babies size?

Pregnancy. You can't choose your babies size. The size of your baby has nothing to do with getting fat during pregnancy. The amount of weigh you gain is up to you, as long as baby is growing properly. The uterus returns to normal size, when the baby is out. What you should be asking is, what is the best way to eat to get a healthy baby!!!! Get your priorities straight. .