7 weeks and bleeding

Last night I went to the ER for spotting, I’m 7 weeks today. The Doctor said the baby was okay, I saw the HB it’s 116 bpm. After I left the hospital I started to bleed heavily and I’ve been in bed all day. I have been passing tissue, and I did have cramps. But I don’t have any cramping anymore, just bleeding heavily still. Does anyone know anything? I don’t know what to think. I’ve had a miscarriage back in 2015 but I’m scared and I don’t know what think.