How Far along r you?
I would go get checked to be safe ... Call your drs office if there's an oncall nurse.
If you don't want to go get checked just keep legs elevated high and be in bed for the night till the am
I heard that bleeding with cramping during pregnancy isn't a good sign. I'm not trying to scare you because i do hope that you and your baby are ok, it could be nothing but yeah definately get checked out. Good luck!