"Medical Miracle" joke

An 80 year woman married an 85-year-old man. After about six months
together, the woman wasn't feeling well and she went to her doctor.
The doctor examined and said, "Congratulations Mrs. Jones, you're going
to be a mother."
"Get serious doctor, I'm 80."
"I know," said the doctor, "This morning, I would have said it was
impossible, but this afternoon you are a medical miracle."
"I'll be darned," she replied and stormed out of the office. She walked
down the hall and around the corner to where the telephones were. In a
rage, she dialed her husband.
"Hello" she heard in his familiar halting voice.
She screamed, "You rotten SOB. You got me pregnant!"
There was a pause on the line. Finally, her husband answered, "Who's
calling please?."