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

Mar 19, 2024 · Fetal Development Within 24 hours after fertilization, the egg that will become your baby rapidly divides into many cells. By the ninth week of pregnancy, the embryo develops into a fetus. …

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.

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 on, …

Although each pregnancy is unique, fetal growth and development follow a pattern.

Aug 23, 2023 · Fetal development Learn how your baby is conceived and how your baby develops inside the mother's womb.

Jun 17, 2025 · Track your baby's growth with our week-by-week fetal development guide, featuring medical illustrations and key milestones from conception to birth.

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...

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.

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: