Have this happened to you

Mariah

I’m currently 16 weeks and 4 days pregnant I started bleeding out of no where I thought I was having a miscarriage so I was crying my man help me to calm down and we rushed to the hospital....when I got here I gave a urine sample and I checked and see was I’m bleeding or not it looked like it stopped. Checked on the baby and he was still moving but what could be the problem??