OMG I was always getting asked if I was having twins, my answer became... I'm sure I'd be a LOT bigger than this if I was! I was big, but NOT THAT BIG! I did have muscle separation which made it look quite big - got sent for scan and everything... fluid - high levels and they said 8 pound baby at 36 wks.. he was born at 39 wks 4 days and weighed 8 pound 4... so NO way was he already 8 pounds at 36 wks. One of the ladies here on BB said to me, it's not the weight anyway, it's the head size that counts and having said that, it smooshed and squishes to get out so it's not THAT big either... so when they measure and say 35cm at birth, it's not that coming out. Try not to worry, it's all going to be great!