Bleach @ 10 weeks

Okay so I know there is a ton of articles online saying that bleach is fine to use with ventilation. But I can’t find real answers for my situations...

So basically at work today my manager was bleaching the whole floor one section at a time and this was taking hours. Meanwhile we were all choking on the fumes. She ended up letting me leave a little early without me even asking because she knows I’m pregnant and the fumes really were a lot (she was even getting lightheaded and had to keep taking breaks) so tell me, do you think it’s okay that I stayed there for 3 hours amongst all of those fumes? It was straight bleach the entire time. I know this isn’t a group of doctors, lol. Just looking for options and maybe even just reassurance 😝