After being told that our bubs is on the big side, I looked up all the studies I could on Macrosomia (bub bigger than 9 pound 4, or 4500 g). There is nothing that indicates how a woman can deliver UNTIL she is in labour. Only then can they determine if bubs can fit out (unless you have a bone problem or something). Also, sizing scans are inaccurate to about 1/2 - 1 pound, depending on the experience of the scanner. At our last OB appointment we mentioned it to our OB, and she said there is no point getting a size scan because it might be inaccurate, and she would hate us to make a decision based on that, and it turn out wrong. How refreshing! An OB NOT pushing for a C section!