A nun pregnant?

A nun pregnant?

Guy's walking down the street when he see's a nun running out of the doctors office screaming at the top of her lungs.
Guy walks into the doctors office and asks the doctor
"Whats up with the nun"
Doctor- "Oh her? I told her she was pregnant!"
Guy- " What! A nun pregnant?"
Doctor- " Nah but it sure cured her hiccups"