Okay so im 17, i am sexually active and have had unprotected sex before, im vegeterian (strange diet), and iv kinda had some depression problems lately (minor). FOr the past 2 months or so i have not had my period, i have had 2 or 3 day random spottings and alot of dark brown almost black discharge. not quite sure whats going on and im worried, im very open to anyone opinions or facts.