Yeast Infection Home Test Kit

Yellow-ish/green-ish discharge?

Yellow-ish/green-ish discharge?
i have a yellowish/greenish discharge coming from my vagina but i still for the most part have regular whitish/clear discharge, i was just tested for stds and had a pap smear, but they both came up clear (this was in september and i haven’t been active since) i shower regularly (every day or sometimes every other day) my period is due for next week. so whats up? is it a yeast infection? cant i treat it with one of those home diagnosis kits and treatment kits? all this has happened once before but didn’t last long enough for me to go get checked out (this was like a year ago ad lasted 2 days this is on day 3 it will be 4 tonight) i just started birthcontol the middle of last month and there is no odor or itching. not having to go to the dr would be a big plus. thanks to everyone who answers
i havent been active since spring

my little brother has that coming out of his nose.
he has a sinus infection.

Easy candida spit test