This is a very common week to have an ultrasound scan done. You might be able to find out the sex of your baby, if that is your choice. On a different note, have you felt the baby move yet?
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21st Week Ultrasounds - Pregnancy
Pictures of Your Baby's Development
By Robin Elise Weiss, LCCE, About.com Guide
Readers Respond: Do you have trouble taking prenatal vitamins?
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- 21 Weeks Pregnant - Second Trimester - Ultrasound Gallery
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