TMI! Early Period??

A
Hello ladies, what is the earliest you've gotten your period after finishing a cycle? Today (just now, actually) when I wiped, it was like brown/bloody discharge. I actually snapped a photo (I'll post it below) but my cycle literally just ended on the 28th! This has been proved to be fairly accurate thus far. I have been taking the mini pill, but the first week (march 1st -8th) was a little wonky as I missed one, was late on another. And I did have sex on the 9th and 10th, unprotected. Is the early period due to messing up my pill schedule after my period ended? Or is a symptom of starting the mini pill?