What’s going on?!

Hi guys. I got my period last month after having a pregnancy scare with my normal period symptoms and everything was okay until recently the past weeks I’ve been feeling weird pains around my stomach and pelvic area. I did take a test, matter fact I’ve taken at least four, one at the doctors and they were all negative. I’ve had to run to the bathroom a lot (bowel movements) I get like these sharp pains in my stomach and a little in like my butt. What could this be?! From what I’ve read, it could either be an ectopic pregnancy 😩 or irritable bowel syndrome?! Any help? Advice? Appreciate it