Minor car accident 23 weeks pregnant

I got in a little fender bender yesterday they rear ended me it wasn’t bad at all but I am sore in my neck area and tender where my seat belt was on my belly I went to the ER last night to make sure my baby was okay but she hasn’t been moving as much since the accident she’s usually very very active and I don’t feel her stop moving almost all day. She was moving last night when I was hooked up and they were watching her but today I have barely felt her. I’m worried has anyone else had a similar experience?