This baby was my first too and I was nervous up until I got on this app. It's normal and unless you see blood don't worry too much. The discomfort and pain is apart of pregnancy though. It got more and more uncomfortable for me.

I get so worried my first pregnancy and I don't know what to expect and everything is changing and hurting like crazy @gcpaschal

That just comes along with being pregnant. I think it's because your uterus is constantly growing.