I had a D&C in May after a MMC. I have had 3 normal cycles since then. This month starting on CD 20 I had some dark brown almost black spotting with dark brown stringy sticky clots. It stopped on CD 23, never any bright red blood. I had a couple drops of rust colored blood but only 2 times. The spotting was never enough to fill up a light liner. Has anyone else ever had this happen? What was it caused by and would it be considered a cycle? My husband and I are of course TTC, but highly doubt I could be pregnant with all the spotting.