Sorry for your lost, I am currently going through the same thing except I found out that I wa carryig two and the fetuses stopped developing three weeks apart. This process can be anywhere between days to several weeks. I can't go through the pain and so I'm going to have a d&c to get the process over with unless My body naturally does it before then. But its up to you if you want to wait the process out or not.
The bleeding has slowed a good bit....it's now like how the ending of your period is like.