Wth kind of period is this!? With pic..

Ladies, just to give you a background I start my period every 28 days, I'm very regular. I typically have a brownish discharge 1 day before AF and then medium to heavy bleeding for 4 days or so. It's been this way since I started my period 14 years ago (I'm almost 28). So this month on 2/11 I noticed the brownish color and knew AF was on her way. Well 3 days now and no blood (except one time when I wiped). This is a FULL day of my "period" right now. What is going on??