All you working ladies...💰

I'm currently 23 weeks pregnant. i work retail so i'm always on my feet for 6 hours at a time. I understand it's not a lot but this is the only job i've had. I've had really bad nerve pinching and my hips hurting while working for only 3 hours at a time. it recently just started happening since I was 20 weeks so it's only been going on for a month & it's a little rough because i got the cold that was going around. My husband says i can put in my two weeks whenever i want i just don't know exactly when i should and i don't want it close to my due date or my baby shower at the beginning of June. I'd like to work but i don't have to. our bills and stuff are covered i just want some input on when i should put my two weeks in...