TMI...

I'm 18 weeks pregnant and I either constantly have UTIS OR YEAST INFECTIONS. Or both. 
Well I know I have a yeast infection right now, but I just went pee and when I stood up, I looked down and there was white floating around? Like It looked like I had used an inserted yeast infection medication and it came out. 
It was small pieces of white floating around. 
No blood, or cramping... I just know I have a yeast infection... Is it because of the yeast infection or what? And what should I do? I don't see my OB until the 26th.