Emily's New Sister - Just for Kids - Understanding Pregnancy

How big is the baby in the uterus?

At 1 month, the baby growing inside the mother's uterus is very small. The baby is so small she could fit in the palm of your hand and is about the size of your thumbnail. Over the next 9 months, the baby will grow more inside the uterus until she is ready to be born.

How big is the baby in the uterus?

Review Date: 7/4/2019

Reviewed By: John D. Jacobson, MD, Professor of Obstetrics and Gynecology, Loma Linda University School of Medicine, Loma Linda Center for Fertility, Loma Linda, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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