since they say that first borns are always late, i believed that my daughter would arrive a few days over 40 weeks, I ended up having her @ 41 weeks. my doctor did tell me at about 35 weeks that she may come a lil early because she was head down at like 30 weeks, and he said she was measuring ahead, but she ended up only being 6lb 12oz LOL, not TOO big, but not entirely small...