Yellowish discharge day after end of period

So my period just ended, im on the pill Levlen so its moreso a withdrawal period. But I woke up at the end of my eriod with yellow mucousy diacharge on thw toilet paper. Is this normal? Is it just the increase of hormones? I have been suffering from this discharge for months and have been swabbed several times but different doctors. I'm a virgin but have recieved oral. Thoughts?