Anyone else have a SCH?

So after trying for a 1 1/2 years to get pregnant I peed on the stick and finally got my double lines! Confirmed it with the doctor and all was well. Till a few days ago I started spotting and instantly was concerned I was miscarrying went to the doctor and they said its old blood could just be something irritated my cervix and to rest. The next day I went to use the restroom and gushed blood. I quickly Went into the ER and immediately they told me I miscarried but want a u/s to confirm it. I went for my u/s and my sac (I'm only 5 wks) measured bigger than the day before and my hormone levels have doubled! But they did find a cyst on my left ovary and then a subchoronic hematoma in my uterus which is where the bleeding came from. So they said at this point I could miscarry or I could make it through. Anyone else experience this?