weird discharge

i’m not anywhere near my period and i got off it 2 weeks ago and i got this weird brownish almost purple discharge today and i have no clue what it is this is the first time i’ve gotten this, i always spot after my period but this is pretty random. i’m on the pill and i missed two days bc i forgot my bc at home and i took those 2 pills this morning so idk if that means anything. also have a weird pain that comes and goes in my labia majora on the left side it’s so random and i’m kind of worried and it doesn’t smell like anything