hi I'm a 23 year old female on birth control (sprintec) and have been for 5 years now. After coming into sexual contact with an unprotected partner 5 days later I noticed I have a brownish mucousy discharge with a bit of an odor. I'm really worried and I have been under a lot of stress lately. My period should be coming in a week and a half and all of my previous periods have been normal. Please help! Any ideas on what this could be?