I had a sch with my first pregnancy. Dd is now 3.5 years old. I had bleeding throughout my entire pregnancy, starting at about 6 weeks. I did have a few extra ultrasounds to monitor the tear and it was declared gone by 6 months. However, at 33 weeks I woke up early and had to go the bathroom. I had a gush of blood that filled the toilet and immediately called my midwife. I was admitted to the hospital and lingered there for 16 days before they were convinced that I wasn't going into labor and they let me go home on partial bedrest. I also had to have twice weekly non-stress tests to monitor the baby. I was able to go into natural labor, with my midwife, and had a drug free, textbook birth at 40 weeks gestation. Dd did spend two weeks in the NICU, but that was because I was a GBS carrier and she contracted meningitis, so unrelated to the sch.
The gist of it was that while in the hospital, hopped up on all the drugs to stop labor, my heartrate was elevated. When they were monitoring the baby they kept picking up MY heartrate, which compared to a baby was low (although it was about 110 bpm, high for an adult). They were concerned that the baby was not responding well to my braxton hicks contractions. When I finally figured out that it was my heartbeat they were picking up, I requested a finger pulse monitor for me and that convinced them that the baby was fine.
Mine is a worse case scenario, however. For many women it does resolve on its own and you don't have to worry about it.
I hope that this response gives you hope! I don't want to scare you about the bleeding. At the end of the day, my daugther is fine and very impatient for me to get off the computer now!