This may be gross,but for the past week and a half I've been having vulvar itching accompanied by an increase of discharge. At first it was thick, then for about three days it was just like water, and now it's a a milky type discharge. FYI: my period should start in approximately 4-5 days and I had sexual intercourse on the 4th of this month(September 4). The itch isn't as bad as it used to be, but at night time, it's another story. Any ideas on what could be happening?