The third trimester of pregnancy begins at week 28 and lasts until week 40 or until the baby is born. This trimester covers roughly the last three months of pregnancy, starting from the 7th month through the 9th month. The exact timing can vary slightly, but most healthcare providers recognize the third trimester as starting at 28 weeks and ending with delivery, which is typically around 39 to 40 weeks of pregnancy. During this time, the fetus rapidly gains weight, and its organs mature in preparation for birth. The mother's body also undergoes many changes, and prenatal visits become more frequent to monitor health and fetal development. In summary, the third trimester runs from:
- Week 28 to Week 40 (or birth)
This period is crucial for growth and preparation for labor and delivery.
