Pelvic pain

So yesterday I woke up with awful pain in my lower abdomen/pelvic region — mostly centered in the middle but then moved to the right side. Ended up going to the hospital because it was so painful. They did bloodwork, urine test, and CT scan. Found nothing. I had a bowel movement (TMI, I know!) and the pain is still there so I don’t feel like it’s constipation. It’s a different type of pain than that. Anyone have and ideas or been on a similar situation?