my stomach hurts, it feels like a bad stomach ache..but it's kinda like migrating to my lower…

my stomach hurts, it feels like a bad stomach ache..but it's kinda like migrating to my lower back...idk if its bh or if i should call my ob. idk what to do someone please give me some advice what would yall do im freaking out

now cause its not getting worse but its not getting better and its constant.