Miscarriage non stop bleeding

I’ve been bleeding for almost 7 weeks now and I’m scared it’ll never stop 😟 please share your experiences with bleeding after a miscarriage.

So, I found out around 10 weeks into a pregnancy that there was no heartbeat. I chose to wait 2 weeks to see if I’ll bleed naturally but nothing happened. My OB then prescribed Misoprostol (600mg) to clear the pregnancy tissues. I took it on July 24 and passed a lot of blood and clots all week and had to go to the ER on July 30 because of the heavy bleeding and pain (they prescribed 4 doses of Methergine to reduce the bleeding), and I had a follow up exam 2 days later when I was told that I passed all the pregnancy but my uterus was still thick which would cause 7 to 10 more days of bleeding. 12 days later I saw the doctor again and was still bleeding (mild) but since my HCG level had dropped significantly he said everything was fine and I should give it a week again and the bleeding will stop. After another 3 weeks, not only it did not stop but I started passing big clots and bleeding a lot. I am scared because the ultrasound I did a month ago showed an empty uterus so I’m wondering if the tissues I’m passing now are from a 2nd pregnancy. is it even possible that I got pregnant again given that I never stoped bleeding from the miscarriage since July 24 ? And also my last blood test showed HCG rising for the first time since I was announced the miscarriage (from 96 to 124 in 2 days). I’ve been trying to reach out to my doctor’s office with no success. I have an appointment in a week but I’m so concerned right now that I can’t wait to get answers.