Pregnant & have cats

Hi mummies , i heard that if u are pregnant and have cat , it is best to stay away from their litter box as far as u can as it may affect baby . Is that true ? I have cats at home and i try to stay away by always being in the room 24/7 . Also , with my constantly stuffed nose , i cant usually smell anything but still i avoid their litter box. Anyone have heard of this or avoided this during their pregnancy ? #firsttimemom #pleasehelp #advicemommies #advicepls