Discharge question, tmi...?

Sorry for the tmi but u were warned. I am having odd vaginal discharge. No itch or redness just discharge when I wipe and in my panties. Yesterday it was yellow/white/peachy and clumpy no odor. Today it is yellow less clumpy. I did use yogurt last night to treat it like a yeast infection. I am std free, married and have been so for the past 4 years. Does this sound like a bad yeast infection or a bacterial?