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Baby's Development in the First Trimester

Baby's Development in the First Trimester

Weeks 7 to 10

The most striking change over the next two to three weeks is the appearance of identifiable human features. The baby now has recognizable parts, such as head, body, arms and legs. The umbilical cord is also present. Although human features are present, the proportion is much different than it will be when your baby is born. The head is large in relation to the trunk, and the arms and legs are short and flipper-like. At nine weeks, your baby will be 9/10 of an inch in length–about the size of a grape. The baby is also quite active at this stage, but you won't be able to feel any movements for at least 10 more weeks. 

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9 week 3-D ultrasound