Had the scan today, they couldn't see anything on the regular ultrasound so they shoved the camera up me fanjo (not the way the sonographer put it) and they could see a tiny sac (less than 4mm!) which suggests there's a pregnancy there and that it's viable so far. But it's very very early days - less than 3 weeks - so hopefully everything will go ok.
It wasn't quite what i was expecting - i thought i was about 7 weeks, and had also convinced myself i had a bump (which must be cake) and was feeling movement (which must be wind) but it was probably just because i knew I was pg.
I have to have blood tests every 3 days now, to check that my hormone levels are doubling and that it is viable - there's still a small chance it could be ectopic.