I don't get this joke

I don't get this joke. Can anyone please explain it to me?
A woman went to the doctors office where she was seen by one of the new doctors. After about 4 minutes in the examination room, she burst out, screaming as she ran down the hall. An older doctor stopped her and asked what the problem was, and she told him her story.
After listening, he had her sit down in another room and told her to relax. The older doctor marched down the hallway to the back where the first doctor was and demanded, "What's the matter with you? Mrs. Terry is 63 years old, she has four grown children and seven grandchildren, and you told her she was pregnant?"
The new doctor calmly continued to write on his clipboard and without looking up said, "Does she still have the hiccups?"
Please no swear words in the answers or comments.
Asked Mar 05, 2013
Edited Mar 09, 2013
Many people believe you can scare a person to stop the hiccups. The joke is that the younger doctor cured her hiccups by telling her she is pregnant at 63 years old.
Answered Mar 05, 2013
Ok thanks I get it now. :) I hate it when I don't get a joke then I ask someone what it means and they answer like it should have been really obvious. Thanks 4 not doing that. :)
He told her she was pregnant to distract her from the hiccups. Funny?
Answered Mar 05, 2013

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