I'm 17 years old me and my boyfriend have been having unprotectid sex for a year. I was due on my period on the 8th ov September and its now the 19th but on the 17th I had a show off brown discarge there wernt much but I don't know why this could be any answers?? :confused:

If you haven't had a "normal" period this month, and are usually regular, try a pregnancy test. It could be just an off cycle, but pregnancy is always possible if you are having sex.
Since you are having unprotected sex, are you trying to get pregnant?