My doc told me that it just depends on how far along you are when you miscarry. The first time i miscarried i was 17 weeks and i bled for about 1 month thereafter. The time before last I was pregnant for 4 weeks and bled for about 1 week. It all depends on your body and your conditions. You can expect anywhere between 4 days +. I know this isnt much help but this topic is iffy.....I am so very sorry for your loss.
I lost my baby on tuesday...It's thursday now...and I'm still bleeding. I had cramps all day tuesday and wednesday. The blood flow has calmed down some for me. It really just depends on your body. After my D&C last time I stopped bleeding around a week and half. My other miscarriages I went a normal cycle about 6 days. So depending on your body. The doctor also told me today that you stop bleeding when you hcg level is back at 0.
When i had my miscarriage i bled for 2 weeks but everyone is different which you know. It depends on your body