Currently 10.5 weeks or so (not completely certain) and have been waiting and waiting for my scan date - finally got it and I will be 13 weeks by that time. It seems sooo long to wait to see if there's actually something viable in there.
On the common sense side, I had about four positive tests over a few weeks (have run out now and not going to buy any more now), no bleeding whatsoever, and some pregnancy symptoms eg throwing up some mornings. So it certainly looks like I'm pregnant. On the other hand I'm nowhere near as nauseous or exhausted as I was with my first pregnancy and boobs are not hurting like they did the first time (though are bigger) so that is worrying me a bit, though clearly nothing definite enough to contact midwife and demand an early scan or anything.
We haven't told anyone at all yet, not even parents, as we were waiting for the scan, but I'm starting to think we might need to tell at least my parents as it's getting awkward planning things without being able to explain why we can't go on holiday in the summer, for example. With my first I ended up having an early scan at 8 weeks (long story) so I felt a bit more confident by this stage.