Unlikely Diagnosis

A woman takes her sixteen year old daughter to a doctor. The doctor says, “OK, Mrs. Jones, what’s the problem?” The mother says, “This is my daughter Frances. She keeps getting these cravings then she gets sick most of the mornings, but somehow she is still putting on weight.”
The doctor gives Frances a good examination, then turns to the mother and says, “Well, I don’t know how to tell you this, but your Frances is pregnant – about four months would be my guess.”
The mother replies, “Pregnant!?! She can’t be. She has never had sex, or even been left alone with a man! Frances?”
Frances says, “No mother, I’ve never even kissed a man.”
The doctor walks to the window and just stares out it.
About five minutes pass and the mother asks impatiently, “Is there something wrong out there, Doctor?” The doctor replies, “No, nothing wrong. It’s just that the last time anything like this happened, a star appeared in the east and three wise men came over the hill. I’ll be damned if I am going to miss it this time.”