Can't wear mask housekeeping

So I'm 4 months pregnant, I currently work in housekeeping at a catholic nursing home and my boss is well aware of that. However the administrator of this place said that I can't wear a mask because of cross contamination & because of the attention it'll drawl from families & etc. I'm to the point to where I feel like if I stay here something bad will happen to my baby being that I'm around these chemicals full time, I'm dumping and filling up big metal water buckets, I'm taking out trash, I'm lifting a lot and the list goes on. Anybody have any advice on what I should do? None of these people seem to care about the health of my child & me. Opinions please? I'm at my last wits end with this fucking place. & oh I'm cleaning up shit and piss all day long 😡