i don't actually know you, but it seems like you really deserve this, congratulations, and i hope you have a lovely pregnancy (well as lovely as pregnancy can be).. Look after yourself, and don't worry too much, the first month is the hardest, and once that goes past andyou start getting kicks and a bump, your worry will slowly fade..
avoid google, or too many threads about losses in the first tri, they can make you worry alot more..
again, congratulations, sounds like this time it was really meant to be for you, fate didn't want you to give up your dream!
xx