I had sex 9-6-2013 i took a pregnancy test 10-10-2013 it was faint, then rite around my cycle i saw browish discharge, am i'm pregnant?

Might be: Re-test. If 10/10 was an early / 'weak' positive, after another week (=now) it will provide a clearer answer. If not, will likely give a clear negative. Good luck!

Possibly: Take another test, it's been a week since 10/10. If you're still pregnant test will be positive. Sometimes brownish discharge is common in early pregnancy. A blood test with your doctor will help as well.

First Trimester: First trimester bleeding can occur due to a variety of reasons: implantation bleeding, threat of a miscarriage, ectopic pregnancy, infection, blunt trauma from sex, hemorrhoidal bleeding, subchorionic hematoma, and others. All first trimester bleeding should be evaluated to determine the likely cause, and some patients may require a Rhogam injection if the have rh negative blood.