Suggest Remedy For Intense Yellow Discharge With Itching In Vagina?

yesterday i realized i had a yeast infection. or so i thought: this cream-like, intense yellow-white discharge, and slightly itching. i decided i'd try a natural remedy and if it didn't work, i'd go to the doctor. i put yogurt in my vagina, plain yogurt. in the morning i had pink-brown discharge, like the yogurt turned pink?? is this possible? or was it blood? i'm on my third pack of yasmin, on day 18 or 19, but i only had breakthrough bleeding the first month. am i still getting side effects?? the discharge is gone, both the yellow and the pink now...actually, i didnt keep on bleeding, it really seems that the yogur that was inside my vagina turned pink...