lil Sorry to hear that - keeping my fingers crossed for you. 
fishermanswife I did Marine Biology at Uni - ended up going into teaching Biology as I decided that there were only so many barnacles I could count on a sea wall in my life (ahhh semibalanus balanoides and chthalamus montagui, my old friends!) - your job sounds pretty cool though! 
I hit 11 weeks today, don't have my scan until 12+6, and I am really starting to get worried about it. OH thinks I'm crazy, as everything seems to be going smoothly and no issues, I am still having nausea and morning sickness on and off, but I can't shake the horrible feeling that something has gone wrong, and we'll find a missed miscarriage at the scan. This has absolutely no basis in fact, and I know it's quite rare, but I am just worrying so much over it all. I've been quite chilled out up until now, but I really just can't shake this stupid worry. Did anyone else feel like that, or am I just a crazy lady?!?!