I am quite concerned now. I have had a miscarriage and the bleeding started 20 days ago ago. The spotting has completely stopped. But a scan yesterday showed that I have a 5mm tissue sac remaining. They told me to have another scan in 3 weeks and do a pregnancy test. They weren't concerned about infection and said it is really rare and just told me what the symptoms were. But my question is that I have no bleeding now. When will this tissue come out and my lining is still 6mm..... with a positive pregnancy test. Image- 24 days after 7 week miscarriage.