In human prenatal development, fetal development begins from the ninth week after fertilization (which is the eleventh week of gestational age) and continues until the birth of a newborn.

Fetal development is how a fetus grows during pregnancy. It begins at conception and ends at birth. Many changes occur to the fetus and the pregnant person in this time.

Apr 10, 2025 · Curious about how your baby is developing in the womb? Here's a breakdown of fetal development week by week.

Dec 7, 2025 · Fetal development from conception to term, including a gestational age calculator from the estimated due date and a fetal development critical periods chart.

Jun 17, 2025 · Pregnancy brings significant changes, especially for first-time parents. This guide highlights fetal development week by week, from early heartbeats to birth milestones. Fetal …

At the end of the tenth week of pregnancy (8 weeks after fertilization), the fetal stage begins. During this stage, the organs and systems that have already formed grow and develop as follows:

Mar 18, 2025 · Fetal development starts soon after conception. Find out how your baby grows and develops during the first trimester. You're pregnant. Congratulations! As your pregnancy goes …

Want to learn more about the stages of fetal development? Visit the American SPCC learning center to view fetal development by week, plus explore our fetal development timeline.

Sep 10, 2024 · Here is a week-by-week walkthrough of the stages of fetal development. There are two ways to measure what stage of development...

fetal (FEE-tul) Having to do with a fetus. A fetus is an unborn offspring that develops and grows inside the uterus (womb) of humans and other mammals. In humans, the fetal period begins at …