Yes my OB said to go anytime there is a fall because they have to check the placenta. I would call your doctor and schedule an appointment. It's protocol, and you want to make sure if something did happen in there you catch it early.
I would go ahead and go dont feel silly at all its your baby you have a right to make sure everything is okay and taking a fall like that i would just to see
I would go just to be on the safe side.