Am I overthinking?

So I’m back at work now and taking it a bit easy. I’m a teacher so I do need to raise my voice to students whenever needed. I also spend time planning lessons and all the other things so I get a bit stressed. I often forget that I’m even pregnant when at work. When I get home I feel so bad and think to myself surely I’ve lost the baby after what a long day it’s been.

My question is - if you’re doing what you’ve always been doing, obviously nothing dangerous such as heavy lifting etc. can you lose the baby?