I’m on CD20 I have had light spotting since CD15. I’ve been tested everything was negative including a pregnancy test at the ER on CD16. I can go allllllll day and be fine until the evening I start spotting but it’s only when I wipe and it’s a brownish red color with chunks.....I’m not sure what to make of it. I went back to the OB yesterday and she did a pap and said I was definitely having uterine bleeding but it is not a bright red she took a swab and said she was going to check for a UTI... I’m not understanding it at all and neither is my OB.