I have been having unprotected sex from 18-27 sep,my period lasted 18-22,on 29 morning i am having brown vaginal discharge, wt does it mean?

MEDICAL EVALUATION: Medical evaluation is needed just to ascertain that there is no infection A pregnancy test is almost always done at that time. If not request for one. Good luck

Probable blood: old menstrual blood mixed with cervical and vaginal mucous. If you need birth control, now is the time for a pelvic exam, use of condoms and birth control pills. Consult your GYN.