Help! Low firm cervix in first trimester!

Jo

My cervix has always been high and softer since I found out I was pregnant, I’m nine weeks and today I was in a car accident bad enough to break my hand. They did an abdominal ultrasound and the fluids looked intact, but I checked my cervix and it feels lower and firm and I’m freaking out I need help I’ve had a miscarriage beforeAnd I’m so afraid something is wrong