2ww?!?! ANSWERS PLEASE

I'm current at 8dpo and every night since 5dpo i have had back pain like crazy. it hurts but not horrible, mainly just annoying as hell because it lingers. Is this a sign of pregnancy or what? I honestly dont know whats happening to me at this point but i pray its a sticky bean 💓💙 Someone plz tell me what this pain may be.