I thought a lot of premies were unexplained/unexplainable? Like, some people just get here earlier, yeah?
My BFF was three month early when she was born. She's fine now, and has always been pretty healthy, and there was no real reason for her to have been early. Her brother was born full-term.
I don't know crap about big babies. I do know my (size 6, eating disordered) mother had my youngest brother two and a half weeks early, because he was already over 8 pounds.
This just seems so - uneducated.