 [ Symptoms ] what should i do before i get pregnant to ensure a healthy pregnancy for me and my baby [ Disease ] i can not imagine there is a causative relationship the yeast in yogurt is different that the yeast that causes vaginal  yeast infections eating yogurt does not cause vaginitis so it just may be a strange coincidence as a matter of fact many naturalist recommend eating yogurt as a preventative personally i do not think that helps either you can just not eat yogurt if you feel if you are having a rare unproven relationship