Fell down

I'm 33 weeks tomorrow. I fell at the bottom of my stairs a little bit ago. My ankle gave out or something. I landed on my knees and my hands and then fell over to my side cuz of the pain in my ankle. I started cramping and she's been moving but not as much as usual... But she could just be resting... I don't wanna freak out over nothing. Should I go get checked or just relax and monitor? No bleeding.