Spotting two weeks before period

So i’m a little confused with my body at this point. i have regular periods, never late or early. they are always on time. i have 12 days before my period is due and i’ve been cramping and spotting. at first it was just really clear and thick discharge with streaks of blood. so i immediately thought it was implantation bleeding. but it’s slowing getting to be more and more blood, bright red in color. what is going on with me?!