Thanks guys, I have spoken to her and the u/s showed everything okay. Baby has changed position (I asked) and is facing the opposite way. They also told her what weight they thought baby was, but I told her that could be wildly inaccurate. Could just be a long baby and with the position change has made 'measuring' different.

I might tell her next time what you just said Alan! My ob never told me mine, other than it was what he'd expect for me at that stage.