>>513709292doesn't have to be distilled water, but watch whats in the water you're drinking for sure. if you're in a fluoridated area (if thats a thing for you) then consider an alternate source. we've avoided all vaccinations so far (kids are 8 and 6) and the kids get basically zero shit food (candy, chips/crisps, pre made store bought food and so on, definitely no sodas) apart from once or twice a month for a special treat.
i tried my best to keep my wife away from all chemical and loud noises through the pregnancy (we work in agriculture, so id do any tractor work, spraying etc).
a tip for near the birth - if she's over due try having sex with her a few times. cooming in her can set the birth off so they wont try to give here any funny chemicals. minimize ultra sounds too if you can because that can shock the fuck out of the kid.
best of luck. everything will be ok!