Inside the Womb at 9 Weeks
Photo courtesy of Pregnancy App
Photo courtesy of BabyCenter
Child length: approximately 1 inch (about the size of a raspberry)
At this stage: The beginning of week 9 marks the end of the "embryonic period" and the beginning of the "foetal" period. Starting to look more and more human. Her eyes are fully formed, but her eyelids are fused shut and won't open until 27 weeks. Your baby's head is now half the size of her body.
Other changes abound: Your baby's heart finishes dividing into four chambers, and the valves start to form – as do her tiny teeth. The embryonic "tail" is completely gone. Your baby's organs, muscles, and nerves are kicking into gear. The external sex organs are there but won't be distinguishable as male or female for another few weeks. The kidneys, liver, brain, and lungs are all beginning to function.
The placenta is developed enough now to take over most of the critical job of producing hormones. Now that your baby's basic physiology is in place, she's poised for rapid weight gain. Your uterus is about the size of a grapefruit this week.
Days left to birth: 218 (22% of your pregnancy is completed)
Due date: 23 November 2017
Data Sources: Baby Center, Pregnancy App, I'm Expecting by Medhelp & Pregnancy Assistant, Parents, Due Date Calculator
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