Help!

Hi so my periods are irregular. I haven’t had a period period since last September but I just spot here and there. Today I’m bleeding ALOT And a lot of blood clots are coming out when i pee. This has never happened to im not sure whether ishould go to an urgent care or wait it out? Maybe it’s because im not used to having periods anymore or idk. I’m getting severe back pains and cramps as well.