Answer :
The third trimester is a continuation of fetal development. Your infant will begin to open his or her eyes, put on weight, and get ready to be delivered.
What takes place during a pregnancy's third trimester?
Your fetus' size and weight continue to increase during the third trimester. The lungs are still developing, and the fetus is moving toward a head-down position. The fetus is roughly 19 to 21 inches long and weighs 6 to 9 pounds on average at the end of the third trimester.
What causes a third-trimester weight gain that is rapid?
During the third trimester, many women will gain weight quickly. This is because, according to the Office on Women's Health (OWH), the fetus typically gains the most weight during this time.
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