No heartbeat..no symptoms..lot of CM

Really need help..

My last period was 6/13. Went to doc at 5 weeks and stared testing HCG .. did 5 times. Never doubled in 48 to 72 hours.. last time it took 6 days to double..1st scan on 8/1 saw sac and measured 5 weeks 6 days.. 2nd scan on 8/6.. no heart beat and measured again 5 weeks6 days. Doc said miscarriage and asked if I wanted to do D&C but I wanted to wait for 2 weeks for trying naturally to flush out . If not then do D&C.

From my last period I am 8 weeks.. but based on scan I am 7 weeks 3 days.. no symptoms of cramping or spotting or bleeding. I have soar breast but I think it’s because of progesterone supplement.

I am worried no symptom of miscarriage but I think it’s because of missed miscarriage BUT for last 3 days I am passing lot of white cervical mucus ( not pink or brown ) ..

Anyone gone thru this?