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

Many different systems formed in the embryonic period (organogenesis) grow and differentiate further during the fetal period and do so at different times.

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

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.

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.

Want to know how your baby is developing in utero? Consult this guide to all aspects of fetal development and fetal health.

As you will recall, a developing human is called a fetus from the ninth week of gestation until birth. This 30-week period of development is marked by continued cell growth and differentiation, …

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:

Explore the journey of fetal development, highlighting key stages and adaptations essential for survival from embryo to birth.

Oct 29, 2025 · Prenatal development occurs in three stages: the germinal stage, the embryonic stage, and the fetal stage. Important systems such as the brain, heart, and organs form early …