I have irregularly regular periods lol I’m almost positive I ovulated between cycle days 10-12 (EWCM and everything) and we had sex enough around that time. Starting day 13 I had brown stringy discharge and then on day 16 started having rust-colored bleeding. Definitely more than spotting but not as heavy as first couple of days of period. No pain at all other than a very light lower back ache. Period isn’t due for another 12 days or so.???? Any thoughts???