Anyone else having a hard time on here???

Libby
I had a mc at 5 1/2 weeks in June. Now I'm 7 weeks exactly today, I go in for my first u/s tomorrow morning. 
Reading all these posts about women finding out everything is good & than mc later is super freaking me out!!!! 
I feel like I won't even have any peace if everything is going well tomorrow because it could still happen. I know this is just something that can happen, but it's really upsetting me. 
How do all of you deal with this fear???