heavy bleeding?

i’ve been on the pill since late may-early june this year and have had such light periods i could wear just a panty liner and be protected. but this period is completely different. there’s so many clots and just so much blood it’s unbelievable. i’m just wondering if this is normal like some kind of buildup that’s just now being let out? like if it’s all the periods leading up to this just being released?

sorry lol this is tmi