i didnt know where to post this

I started bleeding on the 11'th. First few days was a dirty browny colour but enough to fill a pad per day. THen started heavier clotty bleeding which is still going on. It is annoying me to no end. My period was due on the 27th of last month so it was late. Has anyone experienced this? It is a strange period as normally i have several floodings day 2 and 3 (sorry for the tmi) but not this time. I am a little worried. 8-[