hello... I've been having white cottage cheese like discharge comimg from my vagina and itching, burning, and sometimes painful urination. I've been having these symptoms for 2 days. My period is coming in 2 or 3 days. I did have unprotected sex for a short amount of time 2 days ago, and experienced these symptoms later on that day into now. I think it's a yeast infection, but I'm afraid it might be a sti or std.