Bleeding and pregnancy

Kelly • Pregnant with my 3rd child due 16 th of Feb I have a 3 year old daughter and in November 2015 I had a Mmc with my son 💙
I had a scan last Friday and was only about 5 weeks all they saw was the sac so basically nothing is this normal? And I had some heavy bleeding yesterday which lasted from 3 am till about 5pm they sed my cervix was closed and I had burst some blood vessels by my cervix whist having sex very scared got a scan Friday jut terrified tbh 😔