Threatened miscarriage

Has anyone ever had a threatened miscarriage and had a good out come? I started bleeding last night and still was this morning. I called my OB and she told me to head to the hospital. My cervix is closed. They did a blood draw and my levels are showing im around 6ish weeks but im 8 weeks. They did an ultrasound and baby is there and has a heart beat but heart beat is slower than should be. Im a wreck. I just want my baby to be ok. 😪😔