A Doctor's Appointment

A guy goes to the doctor for a check-up, and is in the waiting room when he hears a blood-curdling scream down the hall. Suddenly, a Nun runs out of the Doctor's office and out into the street, whimpering and in tears.
"The Doctor will see you now, Mr. Jones," the Receptionist tells the man.
He enters the Doctor's office, and sees the Doctor is smiling to himself.
"What just happened? What's wrong with that Nun that just ran out of here?"
"All I did was tell Sister Janet that she was pregnant."
"Holy cow?! That Nun is pregnant?!"
The Doctor replies, "No. But, I did cure her hiccups!"