Hello and welcome to HCM, The brown discharge has occurred few days after menstrual cycles ended. The brown discharge can occur during ovulation and ovulation occurs 14 days prior to onset of menstruation. Thus, this brown colored discharge can be due to ovulation. Implantation bleeding usually occurs 6-8 days after conception. However, this discharge or bleeding cannot be due to implantation. You can take up urine pregnancy test to confirm or rule out pregnancy. Infection of genital tract is usually associated with lower abdominal pain, discharge etc. If these features are present, infection can be suspected and thus you need to consult your gynecologist for clinical assessment. Thanks and take care Dr Shailja Puri