Hey ladies! A girl need some help.

Let me start by saying I had THE most stressful week of my life with one thing after another between an audition, final exams, a competition, and a job interview. Four days ago, I began bleeding super thick brown blood. It hasn't stopped since. It isn't necessarily "heavy", but it's definitely enough to need a panty liner. Is this due to stress?? I'm not due for my period for another 9 days, I've been taking my pill consistently, and I haven't been sexually active in a few months so it is not implantation bleeding. Help??

UPDATE: The spotting stopped 1/28. This morning, 1/31 I woke up to full on bleeding, first day of period style. Period isn't due for another 6 days.