A.A.
I had a miscarriage at 6 weeks, naturally also. I would say it took about two weeks for me to stop bleeding completely. Than my period came back about 4 weeks after that. My first two periods were heavier than before, with a bit more clotting. I figured it was just my body's way of cleansing itself. Now my periods seem back to the way they were before. I `was not on birth control though and I am not on it now, so I can't answer to that. My normal period always has some clots/tissue and this is fine, so I wouldn't worry. When you have your period, you are not just losing blood, but also uterine lining, so this is what you are probably referring to as paper. I wouldn't be concerned, but if you have any questions, definitely give your ob a call an maybe go in for an exam. Good Luck and I am sorry for your loss.