Stomach cramp/pain

I’m TTC and since about 8:30 last night I’ve had a pain that feels like a muscle cramp starting at the middle, down to my pelvic area of the right side of my stomach. It isn’t an awful pain but it’s definitely annoying. We had sex last night but the pain was already there. I thought it was just a cramp but it hasn’t gone away and feels like it’s possibly worsening. Any ideas?