Dog knocked me over

A little while ago my brute of a dog came barging through a doorway into me. I was squatted down and fell onto my left hip and hand. Besides my hand being torn up a bit and a sore hip- I had not cramps, but some kind of weird pains on the left side of my belly. Higher than where the dr put the thing to hear the heartbeat, but lower than my belly button. Should I be stressing out as much as I am or should I chill out? My dog is a 70 pound pit mix. I'm 13 weeks