Sub chorianic bleed?

9 weeks and found out from my dr that I have a sub chorianic bleed underneath the baby. Baby seems to be doing just fine but I'm already high risk so the dr says I still have a 50% chance of keeping or losing baby. None of the bleed has come out. Does anyone else have experience with this? I was told it's fairly common, just bad since I'm high risk. I'm hoping someone will have been in the same boat with the bleed being underneath the baby so I can calm my nerves even more. Have to wait 2 weeks before we check on baby again (unless bleeding starts). Thanks ladies!