My back is killing me already and I'm only 13 weeks! It hurt really bad at the end of my last…

My back is killing me already and I'm only 13 weeks! It hurt really bad at the end of my last pregnancy and still hurt after, so I think it's just adding onto the hurt :( my back locks up and pain shoots down my legs and sometimes I want to fall. Tylenol isn't doing a thing, any mommies have any idea for relief?!?!??