Pregnancy

Do you feel nauseous or are you fine when you can smell the developer/fixer?
Ask your workplace H&S officer.
If you are the H&S officer you will have checked out the safety data sheets.... Presumably you do not have asthma or any other respiratory condition. Presumably you are wearing PPE , therefore eye/skin splash/swallowing dangers close to zero.
The thing which would worry me would be inhalation ... is the area well ventilated? Even so I would try to flick this task off to someone else if in the first 12 weeks of pregnancy.

I've recently found out that i am pregnant and i'm in charge of changing the X-ray chemicals at my work but me and another nurse are unsure if this is safe for me to do?