@DellaDella and so we wait.... FS did say something that seems to have stuck "If you weren't doing IVF and had fallen pregnant naturally, you wouldn't be so closely monitored. We probably wouldn't even know it was behind because you might not have even had a scan yet. We don't know how many people this happens to that go on to have successful pregnancies." I concede he has a point there.
Ah Google, I have to say working in health, the patients and families that frustrate me are the ones that Google! But I totally do it for myself so I can't really talk!