What Causes Late Periods And Milky Discharge?

Hello. My period is 9 days late. White and clear discharge started a week before my period was due. I get this discharge like every hour. It looked milky. Okay now I am still getting discharge but the color has changed to brown. I don't know what that means. I do not have an infection so I don't know what it could be. Does this mean I am possibly pregnant?