Yep! I was HUGE with DS! At 30wks I looked like I was ready to pop at any time, and I was always measuring so far ahead it's not funny. At 15wks I looked like I was 25wks, and at my 30wk checkup I was told he seemed like he was going to be a big baby, probably aboud 3 and a half kilos.
He was born at 3.18kgs or 7lb exactly. Don't worry about what the dr says, just remember it's only an estimate