R.D.
Take it from someone who was in not one but TWO car accidents super pregnant... you'd know if something was wrong!! I bet you're more shaken up than anything else (can't blame you there!) As long as baby is moving and you're not spotting, just relax until you can get to the doctor. Call your OBGYN in the meantime and get their say on it.
Relax mama :) It takes a LOT to get to that baby in there! The bodies natural shock absorbent system is there for a reason!!