I am 19 years old and I'm a few days past 13 weeks pregnant. I have a burning and itching sensation in and around my vagina. It stings to pee and there is a white discharge. I'm wondering if it is a yeast infection? I tried putting an anti-fungal cream on it but it doesn't seem to be working. It's been getting worse as the days go on and I now have blister like spots on the outside of my vagina lips... what should I do? My doctors office doesn't open until tomorrow. I've had this since Friday.