MMC and blood results

Just searching for other people's experiences with missed miscarriage. This is my 4th loss first missed miscarriage. So I found out I was pregnant in Feb went in at 8 weeks measured 7 weeks with a strong heart beat. Went in a month later for a my second appt was supposed to be 10 almost 11 weeks found out baby had passed measured 7w1d. My question is those who had blood work following your hcg to 0 how long did it take? My first draw was in the 13000s, second was in the 200s, third was at 8.7. My last blood draw was 3 weeks ago. Doctor wanted me to come in a week ago for my next one but I couldn't. So I took a urine test just to see and they have been positive. I haven't taken any urine tests since Feb until now that is. I also started my period 3 days ago but my tests were the same for the past 4 days until today it got darker? I was just hoping for a negative test. I'm going Monday for more blood work 😩 I just want this to be over honestly. Anyone have similar experiences? Im sure it's just leftover hcg but now I'm very nervous and confused.