miscarriage bleeding

Mandi • I`m 28 & married to the love of my life. Currently pregnant w/ my 🌈👶🏻. Angel baby 10/16/16 👼🏻 WE ARE HAVING A BOY! 1/1/18 💙
I started bleeding a few days ago but just tonight I started to bleed heavily with large clots. I think I've flushed the toilet about 10 times now, haven't left the bathroom in 2 hours. The doctor says no more then a pad an hour but how is that possible during a miscarriage? How much bleeding did you do an hour through your miscarriage??