Car accident

Hi everyone! I recently found out I was pregnant with my 3rd child! We were in a horrible car accident on Sunday and I was rushed to the ER. I have bruising to my lower abdomen and have been in a lot of pain. While in the hospital they performed an ultrasound and showed I was 5 weeks. No heartbeat due to how early. I have my first OB appt on Tuesday to check for heartbeat. Has anyone else been through this? I’m so nervous the accident will cause me to miscarry 😔