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Your 20th Week

Those butterflies in your stomach may be more than just gas.

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The eyebrows have thickened and are clearly visible.The baby's body has a covering of fine hair, called lanugo hair.The spine is now quite straight.At 20 weeks the average crown to heel length is 8.7 inAbdominal organs, including the stomach, intestines, and liver, are fully enclosed within the abdominal cavity.Tooth buds, for both the milk teeth and the underlying permanent teeth, are now in place under the gums.

In the next few days, you might feel your baby's movements for the first time. The little flutter can be such a tiny sensation that many women write it off as gas. But what a wonderful moment when you realize the truth! If you want to find out the sex of your baby, it could be revealed on the ultrasound scan you have this week.

Excerpted from Pregnancy Day by Day.
Copyright © 2009 Dorling Kindersley Limited.
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