Ladys I need help!!

I'm NOT trying to conceive!!!

Well I've rarely had sex this month or last month. There was a time where I ran out of my birth control and done the pull out I didn't know if I was on or off of my ovulation or not. So he pulled out about a min before cumming so hopefully no pre-cum.

Anyways I'm spitting yesterday and today light pink no signs of period that's Supposed to be the middle of next week, any suggestions on what or why this could be happening? I am 6months postpartum