More discharge than usual with a pinkish/brown tint?

I'm not supposed to start my period for another 2-3 weeks I an vert irregular it's usually late than early. In having lots of discharge and it's mostly creamy white but occasionally has a pinkish brown tint to it. Sometimes it just comes out as a glob. Sorry TMI! but it's not chunky or anything. I have no infections. So what could this be