Hi so my period has always been five to six days long, since I was 11 years old (I’m now 21) and it’s never really fluctuated much since I started birth control at 15. It would always start on a Wednesday and be about six days and then end. This month it was only two days. It started on a Thursday and ended Saturday morning/Friday night. A few weeks before that (like two to three) I was spotting for over a week. And today I had pinkish, sticky type discharge. I don’t really know what this means... should I be worried? I have an appointment already with my gynecologist on Thursday about my birth control but like...I don’t really know what all this means?

Advice please??