Promonition

I work in a nursery as a room leader of the preschool children. A position of deputy has just came up and it will be at least until April 2020 if not a permanent role. I really want to go for it but I have just recently found out that I am expecting and I'd be due in March 2020. I know they cannot keep me from applying because I'm pregnant but I don't know if I should go for it or not. My work do not yet know I am expecting. Please give me your opinions!