Thankyou so much everyone. I knew you'd all understand! I've already had 3 scans so I can't really move the next one forward. I just need to chill a bit I think (which is easier said than done!). I am dreading the wait between the 12 week scan and the 20 week scan. I don't think I'll be able to handle the stress of it so I might request a scan at 16 weeks, just to check. I don't know whether I should go ahead with the doppler idea.. You had a good point Dory.
Anyway, enough about me.. Thanks so much for caring and hope you all have a lovely weekend! Xx