Baby-to-be's lungs are developing rapidly, although she'd probably need a little help breathing if she were born at this point. Her respiratory system continues to develop, her nostrils are open, and she can breathe—but she won't take her first breath of air until delivery day. By the 25th week of pregnancy, her reproductive organs are formed (in boys, the testes have descended). Her skin is translucent and wrinkled, and she can hear Mama's stomach when it gurgles and her voice when she sings. Baby is becoming more aware of how she can move—she's wiggling her fingers and toes!
[Picture and (edited) information provided at http://www.babyzone.com/pregnancy-calculator/pregnancy-week-by-week/.]
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