I am 4 and a half months pregnant....I had a cold most of last week, and I have a vagina that is very itchy, swolled, and generally uncomfortable, as well as a very thick white mild smelling discharge. My doctor did a test for Herpes and today results came back negative. However, he thought that is was an external yeast infection anyway, and Im just waiting for those results. Would a yeast infection be causing all of this.....and I have also noticed mild back pain, and itchiness on my skin.