After a car accident

I was in a somewhat major car crash, airbags deployed, car is totaled, he accident happened the first day of my period, and I am curious if anyone has ever experienced cramps continually after a car crash? I have been having cramps ever since the accident and don't know If I should get checked out by an OB, I spotted for 4 days, when I usually don't spot at all, my period was normal in flow but spotting was odd, the accident was in the first day of my period. It's been 9 days since the accident