BH or contractions?

I’m 20 weeks pregnant and I’ve been having what I think are Braxton Hicks but I’m not sure. My stomach gets super tight and uncomfortable, I get a bump on one side of my stomach sometimes like he is laying on that side. I also get some cramping with it that it actually bothers me. I get them pretty often on a day. I also have like a ovulation pain type of feeling in my left side. Besides that nothing else I just want to be sure I’m not actually having contractions, it doesn’t hurt like crazy or anything. First pregnancy so I get easily worried, he’s moving and kicking a lot so that might be why I’m having them so often