Could it be my job? 😢

It's been 7 months already with no luck, one doctor told me everything was fine with me and working correctly ( I have an app with a diff doc in a couple weeks because the first one didn't really take me seriously since it hasn't been a month) and still no BFP. From what I can tell and track everything is fine and working correctly. However my job is very physically demanding on me and I'm in the heat pretty much all day. I work for a lawn and tree care company treating trees and shrubs with insecticides. I always make sure not to get any on me and I take it as easy as I can but Im always moving and sweating and really working body. I have an air conditioned truck that I drive from house to house and I keep it running in between jobs to cool off. By I wonder if working my body like that could be significantly affecting us ttc. Any thoughts or advice?