Ellie
here to hold your hand as well!
I had the same fear 2 weeks ago at my 12 week scan

Like you - had lots of probs getting pg- used IVF as well - six goes
I lost my last bubba when i went for my 12 week scan- bubba had apparently died the day before
This was a la naturale miracle
I was soo petrified at my 12 week scan that as soon as he put the u/s on and i saw and confirmed a h/beat i bawled my eyes out- it was the most beautiful sound i had ever heard. Was even more relieved when n/fold came up trumps as well

Being sick is such a good and reassuring sign!!!

You have a 70% chance of going full term and having a healthy baby pre- 12 weeks and a 60% chance if you have had a m/c previous!! Pretty good odds i say!

Hang on to this hope!!!!! It keeps you sane!
Good luck and will be sending postiive vibes your way
take care

odette