uhm? help pls?

SORRY FOR THE TMI, so i’m mid cycle. i have about 1 1/2 weeks left til my next period. i had my last period like a week and a half ago. everything was normal, heavy bleeding for like 2/3 days. i haven’t had sex since the first day of period. he pulled out. also i’m on birth control. i take it regularly, so today i’m having this discharge. does anyone know what this means or what it is??