I recently had an ultrasound to investigate why I was measuring ahead. Doctor says, according to ultrasound results, baby measures 3weeks ahead. They are confident in my due date, and glucola test was normal, so doctor tells me to watch what I eat and try exercising since the baby is so big. I remind her that I'm 30 weeks and have only gained 13 lbs. She says that my calories could be going straight to the baby, so he's getting bigger even tho I'm not. WHAT? is this even possible? My husband and I are both tall and were both large babies so I assumed that was the reason. I would feel terrible if my eating habbits were to blame... I do eat a lot, but I exercise every day! Can my baby be large because of me even though IM not gaining too much???