Sonogram Pictures Week-by-Week: Your Guide to What's Going On in There!

Week by week sonogram photos of your baby's development. See what's going on in there while you're pregnant each week. (37 Photos)

-iVillage on May 5, 2010 at 10:34PM

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18 Weeks Pregnant Sonogram

FHC; Science Photo Library

a -iVillage on May 5, 2010 at 11:16PM

This picture shows the spine and ribs and a well-developed (no longer webbed) hand. An ultrasound at 18 weeks can also reveal your baby’s gender (if you want to know). A girl will have her uterus and fallopian tubes formed and a boy will have a clearly visible penis.

See what else is happening at 18 Weeks Pregnant.

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