Original URL: http://pregnancy.familyeducation.com/first-trimester/week-12.html


First Trimester 2nd Trimester     3rd Trimester


Your 12th Week

An important milestone is passed as the first trimester ends.


12 week embryo in uterus Your baby measures 2.4 in crown to rump.Ears are nearly in their final position on the head.Limbs are fully formed and have lengthenedYour uterus is beginning to lift up out of the bony cavity of the pelvis.The intestines, previously contained in the base of the umbilical cord,The umbilical cord is fully developedYour baby's heart is beating rapidlyThe mouth can open and closeThe head now has a more rounded shape.

Yawning, arms and legs waving-your baby is on the go and you can actually see it happening. Most women have their first scan this week, and it's the big thrill of the first trimester. Up until now, you may have preferred to keep your pregnancy a precious secret. After the scan, you'll probably feel more confident about making an announcement, especially when you have the photos to prove there's really something happening!

Excerpted from Pregnancy Day by Day.
Copyright © 2008 Dorling Kindersley Limited.
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