Your baby's between 17-18 inches long now, and she weighs over 3 pounds. A pint and a half of amniotic fluid surrounds her, but that volume will decrease as she gets bigger and takes up more room in your uterus. Her eyesight continues to develop, though it's not very keen; even after she's born, she'll keep her eyes closed for a good part of the day. When she does open them, she'll respond to changes in light but will have 20/400 vision — which means she can only make out objects a few inches from her face (normal adult vision is 20/20).Even though your baby's height and weight haven't changed much in the past week, the big news is her brain gain. Until now, the surface of your baby's brain was smooth. Now, her brain is taking on those characteristic grooves and indentations. Those wrinkles allow for an increased amount of brain tissue — a necessary change as your developing baby prepares for life outside your womb, and the street smarts she will need.
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