I agree with the others about checking with your RE...but the first month I was on femara, I thought I had a yeast infection, too. I had never had one before, so I wasn't really sure, but I had a bit of creamy-looking, yeasty-smelling discharge. This was right before ovulation. When I asked my RE about it, he said it wasn't a yeast infection, but just my body responding to the increase in hormones. And sure enough, a day or so later it was gone.