Worried

I originally found out I was pregnant in November I miscarried two days before thanksgiving. Still have yet to have a period so I took a test on the 3rd of January and It says I’m pregnant I have already gone to the hospital for heavy bleeding once and they said that at that time nothing was wrong the baby’s heartbeat was a little low but they said it was okay i was 5 weeks and 6 days and now I’m 8weeks and 4 days and I’m bleeding brown I’m just so worried and I can’t get into a doctor for another week