Bleeding and miscarriage

Ok, so last week I posted my positive PT but since then I've had mild bleeding to slight bleeding and my progesterone hormone was extremely low. Since then, I've stopped bleeding but start for like a day, with very light spotting (dark blood) and then goes away with only blood on the tissue when I wipe. I was wondering if anyone has had this happen to them? How long after you miscarry does the bleeding stop?