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Week 38: Baby develops a firm grasp. Thirty-eight weeks into your pregnancy, or 36 weeks after conception, your baby is developing a firm grasp. Your baby's toenails have reached the tips of his or her toes. His or her brain might weigh about 14 ounces (400 grams). After birth, your baby's brain will continue to grow.
For most girls, the growth spurt starts between the ages of 10 and 13. They then grow just 1 to 2 inches more in the year or 2 after getting their first period. Itâs during this time that they reach their adult height. Most girls reach their adult height by age 14 or 15. This age could be younger depending on when a girl first gets her period.