Lifting while pregnant?

Kyra

I work at a grocery store so I’m always lifting big cases of water or beer and A co worker told me that I shouldn’t be lifting anything heavy especially in the first trimester but it’s hard since it’s part of my everyday job and especially when there are older people that can’t lift those heavier things as easy. I just wanna make sure I’m not putting the baby in harm in any way. Just looking for opinions and advice.