Hi. I am almost 20 years old. I have been sexually active for 4 years. I was told I didn't have to take the last week of birth control pills, so I didn't. Didn't have my period for 2 years. After I joined the military I got put back on birth control. My partner and I have sex, but no pain. I have been having this brown discharge for almost 4 months now. I switched birth controls but I am still having it. My doctor said to just wait it out. Can you please tell me what could be wrong? My partner and I don't have sex anymore because of this.