Hello, I was spotting for 12 days and it would only be brown/pink/bright red when I wipe, never on the pad the first couple of days then maybe after 7 days it started to just be spots on the sanitary napkin. I have an irregular cycle, I come on every 3 months I have not came on for this month. My cycle is usually 5 days the first day just brown old blood 2nd 3rd day very heavy and 4th and 5th light. So I have stopped spotting for about 3 days now and when I went to the bathroom and wiped it was brown dirt like substance, but it can t be dirt I wipe properly and just got out the shower maybe 4 hours ago, also it looked kind of like brown sand inside of the toilet