Thanks for your message twocatsandatoddler, I hadn't thought before about if I have to have a caesarian it taking longer to recover. I'm in the same boat as your friend, I don't get paid during the summer. I think I'll make a few calls though next week to find our whether I'll be able to get any financial support.
LacieLee, that's true. I've been thinking that I should be fair to my employer, and give as much notice as possible etc. However, considering my position is less certain, I think it might be better to protect myself a bit more and hang on before letting them know.
Mshepp, I had a scan at 8 weeks (got the dating scan on Friday). The first one was just to check if everything was okay, and only lasted about 20 minutes at most. Though if you're there for blood tests also (and to go through any questions etc), I'd allow a bit more time.