I don’t know what’s going on after MA

My doctor had told me to take the misoprostol to get all the tissue out from the previous MA because it still kept showing I was pregnant and I did that last week and I’ve just been having brown discharge is it normal? I did have strong cramps and I did expel tissue but I had no bleeding just brown discharge. I took a test Monday morning and it showed a fated line compared to two weeks ago.