The third trimester spans which weeks?

Prepare for the Certified Childbirth Educator Exam. Utilize flashcards and multiple choice questions with detailed explanations to ensure success. Equip yourself with the knowledge to excel on your test!

Multiple Choice

The third trimester spans which weeks?

Explanation:
In pregnancy, trimesters describe broad stages of development. The third trimester begins at week 28 and lasts until birth, typically around week 40. During this period the fetus undergoes rapid growth and organ maturation (especially lungs), gains weight, and becomes more active. The uterus continues to enlarge, and prenatal visits focus on fetal size, position, and planning for delivery. The earlier ranges don’t define the third trimester: the first trimester is roughly weeks 1–13, the second around weeks 14–27, and a range like 20–30 would start before 28, so it doesn’t capture the whole third trimester.

In pregnancy, trimesters describe broad stages of development. The third trimester begins at week 28 and lasts until birth, typically around week 40. During this period the fetus undergoes rapid growth and organ maturation (especially lungs), gains weight, and becomes more active. The uterus continues to enlarge, and prenatal visits focus on fetal size, position, and planning for delivery. The earlier ranges don’t define the third trimester: the first trimester is roughly weeks 1–13, the second around weeks 14–27, and a range like 20–30 would start before 28, so it doesn’t capture the whole third trimester.

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