6w2d SCH at 50%

okay so I went to the hospital last night after a long week of getting levels checked. thought it was ectopic, but they found a gest sac and yolk sac measuring 6w 1d. I also have a subchorionic hemorrhage measuring 50% of gest sac. I am currently 6w2d. they didn't find a fetal pole or heartbeat, which I assume is too early. hcg levels were 3000 on 7-12, 6000 on 7-16 and 9333 last night. I'm not sure what is happening, I'm so confused and nobody can give answers. anyone experienced anything similar and had a successful pregnancy? any insight on an SCH this early? this is baby #4 and never experienced anything like it.