Keep your opinions to yourself

39 weeks today and if one more person asks me "are you sure there aren't twins in there" or says "that's gonna be a 10lb baby for sure" or "it's going to be hard to burn off that baby bump with your baby being that big" I'm going to go completely feral and start breaking femurs... why are people unable to keep their opinions about MY body to themselves? I would literally never even fathom saying those kinds of things to others.