It is bad for the baby.
the bleach, for example, is being inhaled, not only can it cause you a headache and irritation, but it is poison for the baby. everything the mother goes through, whether it is inhaled, eaten, whatever, will be passed to the child.
its like second hand smoke.
i would try to limit my contact with any toxin. whether at work or home it doesnt matter, its not safe.
hope this helps.
A normal levels of exposure, there are no known harmful effects of bleach on a developing fetus; however, it's not like there's a bunch of scientists studying this sort of thing. If you are having a reaction to the bleach, your immune reaction itself may be more of a threat to the fetus. Bleach vapors can be filtered out by wearing several types of air filter masks that are sold at hardware stores for using spray paint and other chemicals.