Help Please😰

Fifi

So last month my period was a day late (It never comes late). When it finally came, it started off very light pink which I thought was spotting. Over the hours it turned to be very very mucusy light pink. But by the next day it turned out to be dark red with clots. This carried on for 8 days straight. I usually only bleed for 5-6days. What could this mean? Help please?