Bleeding for 10 days, huge clots

So normally I’m normal every month period well this last time I was 6 months late never tested but then I would bleed for a day or two .. well 10 days ago I bled really bad and then since I been bleeding and passing blood clots sometimes quarter size most of the time they have been Bigger… so just worried and confused .. like last night I wiped and it was barley anything on it then today bam again bleeding heavy just confused what’s going on and what I need to do plus cramps .zz