Subchorionic Hematoma

Hi everyone,
I am currently 11+2 and I have been diagnosed with a SCH. Went to hospital yesterday in fear of miscarrying (great way to spend Easter 😔). Got a quick ultrasound from the obgyn he said baby is ok and has a heart beat then told me I had a blood clot between the sac and wall, hence the bleeding. I have intense cramping and am bleeding clots. The obgyn said I'll bleed until it is gone, and the rest will be absorbed. On strict rest until I get a proper ultrasound this week. I'm still so worried about bub, has anyone gone through this and had a positive outcome? Is it possible to miscarry the following day after seeing a heartbeat? :(