Would i still be able to work as a custodian if pregnant? my job requires me working with cleaners

Yes: You can work as long as you ensure that you make sure that you take common precautions while working, ie - wearing glovesprotective wear, working in well ventilated areas etc.

Pregnancy: cleaning : There are some cleaning fluids which in high concentrations may cause problems with your pregnancy, but if you work in a well ventilated area, the concentrations are minor. Get a list of the common cleaning agents and ask your obstetrician to explain which might have to be avoided.