U/S was great - blood flow and placenta all good (no sign of anemia) and heart looking very healthy. she checked everything they normally would if I had tested positive. According to their calcs, DS is already 6 pounds 6 with plenty of room still to grow!

Idiot Dr still hadn't called me by nearly 5pm (he knew I was worried..grr) so I rang and chased him. I don't have previous immunity and was negative for current exposure. He obviously did a bit of research in the meantime and worked out that the incubation period may not have completed when I did the test so wants to re-test in 2 weeks unless my OB says differently.

Seeing the OB on Thursday. As my U/S was so good, I'll talk to him about it then.

Thanks for all your interest and support!