Probably nothing right?

I'm 22 weeks. I bent over this morning to put on my socks and I felt this jolt of sharp pain in my lower left abdomen, just above my pubic bone. It went away as soon as I stood up but had been kinda crampy since (about 1.5 hours ago). Also when I rub that area it's a little sensitive to touch. Anything to worry about? I'll call my doc when they open.