Bleeding 3 days after period ended

💯💯 • Don’t get mad, bitch GET GLAD

I have had the same period from hell for 7 years. 7 to 8 long days of hard bleeding and harder cramps. It’s shitty but it’s ALWAYS regular. My period ended two or three days ago and I just started bleeding out of nowhere. This has never happened. 8 mothafucking days yall. Every damn month. Whyyyyyhyy am I bleeding now lol. Anyone know what it could be?