Hip pain!

So I'm 32 weeks and I just went back to work part time to help catch up on bills before baby gets here. Well I work in an oil change shop so I run around on concrete a lot and don't sit down until I get back home, and by that time my hips and stomach muscles and feet are killing me!!! Laying down and resting helps my stomach and feet but my hips hurt constantly now 😭. Does anyone have tips on how to help this?