I can't believe myself, please help?

RiRi , P & PJ’s Mom 💗💖💙
So I was looking at this post where women were sharing their pregnant bellies and I decided I wanted to share mine.
This was my thought, "I should enjoy this and share it before I miscarry and don't have it anymore."
I don't want to miscarry, from being on this app for almost a year all I see is losses before I got pregnant I thought I'd miscarry because of it and wrote posts about it. This is my first baby. 
It's like it's already set in my head, I'm terrified