2cm long at 27weeks 3days

So had this painful uncomfortable Braxton hick since Tuesday nite went to my doctor and she said it normal at certain stage of pregnancy.. when home👌 got up to go pee on Saturday morning wiped and saw this discharge with blood, rushed to the hospital, been here since Saturday was given 2 shots of steroids and magnesium sulfate doctors say water in amniotic sac is okay baby's heart beat is ok everything looks ok but because am 2cm long cervix and my cervix is closed but I have to be under supervision to be sure am not going into a preterm labor and make sure am pregnant till 37week...so my question is, did anyone go full term 37weeks with a 2cm long cervix...