brown jelly like discharge. WARNING TMI PIC.

Hey girls. I am 3 weeks today after a miscarriage and from a week ago feel I am pregnant. from yesterday, with bowel movements I am getting this brown jelly like discharge? It almost has the consistency of PVA glue and is very stretchy. there are big blobs of it when I wipe. then I am dry again until a bowel movement. At first I thought maybe v early miscarriage as I passed a 2p bit of tissue, but I have endo and can do this anyway. or it could be left over from my last miscarriage. Now I have no idea what it is. It's a lighter brown than in this pic and the same stretchy jelly consistency the whole way through. Any ideas? period due in a week and negative hpts so far.