"Another miracle?" joke

A woman takes her 16-year-old daughter to the doctor.
The doctor says, "Okay, Mrs. Jones, whats the problem?"

The mother says, "Its my daughter Darla, she keeps getting these cravings,
shes putting on weight and is sick most mornings."

The doctor gives Darla a good examination then turns to the mother and
says, "Well, I dont know how to tell you this but your Darla is pregnant -
about 4 months would be my guess."

The mother says, "Pregnant?! She cant be, she has never ever been left
alone with a man! Have you Darla?"
Darla says, "No mother! Ive never even kissed a man!"

The doctor walks over to the window and just stares out it.
About five minutes pass and finally the mother says, "Is there something
wrong out there doctor?"

The doctor replies, "No, not really, its just that the last time anything
like this happened, a star appeared in the east and three wise men came
over the hill. Ill be darned if Im going to miss it this time!"