31 weeks pregnant what do I do 😢😢

Vanilla • Nova muva 👩‍👧 currently TTC baby #2
I am 31 weeks 2 days pregnant and I have severe back pain that brings tears to my eyes my hips and buttt hurt when I sit or stand and it gets even worse when I lay down no matter if its my side or back I go to school and walk to 2 bulidings to get to class this is my seat in all my classes I am suffering what do I do 😢😢😢😢😢😢