I would go to the doctor or hospital just to be sure but my mom fell off a ladder and landed on me on a counter and I turned out ok. My doctor told me there is so much fluid protecting the baby it's hard to cause any damage at all. Good luck. I hope you get taken care of.
It's okay momma, that's what your uterus, placenta and amniotic fluid is for, to protect baby from stuff like this. It takes a lot to cause any damage from a fall so I'm sure you're fine!