Is this too much physical work for early pregnancy?

My future in laws and my fiance own a pool business, which I help with sometimes.

I'm only 12dpo (with many BFPs) and terrified of having a miscarriage/chemical pregnancy so I'm trying not to push myself but they want me to work a lot.

I'd be dealing with chemicals like chlorine, and acids outside in the hot heat for hours, carrying heavy machinery, and standing/lying down on my stomach in positions for quite sometime in order to fix pipes and what not. It's draining even without being pregnant.

My mom-to-be intuition is telling me this is a big no no but my mother in law did stuff like this pregnant and I just know they're all thinking I should suck it up. It's very stressful.

It's too much right?