At my 4D scan yesterday, she did a growth report of LO, but made a big deal of getting his thigh bone length and went to the trouble of showing it us too. Just sitting here thinking 'why out of all the things she could of looked at, why thigh bone?' Does anyone know if theres a specific reason she will of checked this? On the growth report print out, it says LO's thigh bone length is measuring at 26weeks gestation. But I'm 29 weeks tomorrow. Is this bad?