i am 21 years old. i have never taken any birth control pills before. i've been sexually active for the past 4 years with only 1 partner, and me being his only partner. its been a month an a half since i last had sex. i had my period 3 weeks ago and 2 days after it ended, i noticed some brown discharge in my panties. then it went away. a week later, it happened again, then again 3 days later. then it happened again a week later, and it hasn't gone away for the past 4 days and its still happening. i have been under a lot of stress these past few weeks. could that be a affecting the pH balance in my body? what's wrong with me?