Back pain

When did you guys get told to work less or stop working due to back pain? I had back problems prior to pregnancy so that definitely does not help. I’m 21 weeks and after I get off work I’m practically useless at home. I just have to go lay down. I’m a hairstylist in a very busy chain salon so I’m up on my feet ALL day long. My back is so bad that I pretty much cannot move. I’m worried about work, financially it doesn’t matter if I work or not. Im just not ready to just sit at home alone all the time 😂 my hubby is always gone with the Navy so it’s really just me and the animals.