I’m trying to work through this pregnancy and I’m only 4wk 4days and I’m so tired and hurt so bad.…

I’m trying to work through this pregnancy and I’m only 4wk 4days and I’m so tired and hurt so bad. How did you do it please give tips. I teach 3 yrs olds, 10 of them at a learning center so I’m on my feet 6000-10000 steps a day idk how I’m going to make it even through the first trimester. I read it gets better second but that’s 2 months away how am I going to do it? Help and recommend some affordable shoes need new shoes feet and back really hurt!