I have been off of my period for almost a week now, it was a normal five fay long period with a normal flow. But since the ending of my period, I've had discharge that started out as light spotting and then as days progressed, became brown. I've had this discharge since my period ended. The last time I had sex was two weeks ago and it didn't last very long and he came outside of me. I haven't been having any pains, I'm just slightly concerned. 

Thank you!