Thought I was gonna lose my baby

I fell down my flight of stairs Friday. Saturday while at work I started having some sharp cramping. My husband and I went to the hospital and the nurse couldn't find a heartbeat on the doppler (I was 15+2) we were really worried. I live in a small town. So we had to wait for the ultrasound on call to come to the hospital. When he finally got there he took us in and right away found the baby and the heartbeat. It was a huge relief. He tried looking between the legs to tell us the gender (or at least guess) and my little one wouldn't open its legs. I did that to my mom her whole pregnancy. She didn't know what I was until I was born. Praying my baby doesn't take after me!