Fetal Development Stages Week by Week | Parents

Quickening in Pregnancy: Feeling the First Fetal Kicks

Quickening in Pregnancy: Feeling the First Fetal Kicks

Many moms-to-be wonder when they’ll feel fetal movements for the first time. Here’s your guide to understanding “quickening” during pregnancy.

Study Shows Language Development Starts in the Womb

Study Shows Language Development Starts in the Womb

New research reveals that babies in the womb can already distinguish between different languages.

An Embryo Forms: Weeks 4 to 8 of Pregnancy

An Embryo Forms: Weeks 4 to 8 of Pregnancy

Chances are you have no idea you're pregnant yet-but your body is already hard at work. Watch as the egg undergoes its wondrous transformation to embryo.

Developing Senses: Weeks 22 to 25 of Pregnancy

Developing Senses: Weeks 22 to 25 of Pregnancy

Your baby's ability to see, hear, smell, taste, and feel are developing stronger each day. Learn which of her senses are already working.

Sleep Cycles: Weeks 26 to 30 of Pregnancy

Sleep Cycles: Weeks 26 to 30 of Pregnancy

At this point, your baby is awake and asleep at very specific times of the day. Find out about his sleep patterns, and what they mean.

Second Trimester Begins: Weeks 13 to 17 of Pregnancy

Second Trimester Begins: Weeks 13 to 17 of Pregnancy

Here's to hoping you're no longer feeling nauseated or exhausted! Right now your baby's brain and eyes are making dramatic strides each day. Learn all about it.

More Fetal Development

First Trimester Ultrasound Pictures

First Trimester Ultrasound Pictures

Do you know what to expect at your first trimester ultrasound? We've partnered with the American Institute of Ultrasound Medicine (AIUM), Johns Hopkins, and the March of Dimes to create this unique peak into Baby's development inside the womb during the first few weeks of life.

Second Trimester Ultrasound Pictures

Second Trimester Ultrasound Pictures

We've partnered with the American Institute of Ultrasound Medicine (AIUM), Johns Hopkins, and the March of Dimes to create this unique peak into Baby's development inside the womb. These images reveal all the intricate details of your baby's growth in the second trimester.

Third Trimester Ultrasound Pictures

Third Trimester Ultrasound Pictures

Twins: A Closer Look at Your Developing Babies

Twins: A Closer Look at Your Developing Babies

Baby's Alertness in the Womb

Baby's Alertness in the Womb

Week 7 Ultrasound: What It Would Look Like

Week 7 Ultrasound: What It Would Look Like

This NFL Star and His Wife Had a Prenatal Testing Scare—Now They're Talking About It

Pro football star Torrey Smith, whose wife is pregnant with baby #2, wrote an honest blog post about their anxiety-inducing prenatal test results.

All Fetal Development

Week 30 Ultrasound: What It Would Look Like

Week 30 Ultrasound: What It Would Look Like

Week 32 Ultrasound: What It Would Look Like

Week 32 Ultrasound: What It Would Look Like

Week 34 Ultrasound: What It Would Look Like

Week 34 Ultrasound: What It Would Look Like

Week 31 Ultrasound: What It Would Look Like

Week 31 Ultrasound: What It Would Look Like

Week 36 Ultrasound: What It Would Look Like

Week 36 Ultrasound: What It Would Look Like

Week 35 Ultrasound: What It Would Look Like

Week 35 Ultrasound: What It Would Look Like

Week 33 Ultrasound: What It Would Look Like

Week 33 Ultrasound: What It Would Look Like

Week 28 Ultrasound: What It Would Look Like

Week 28 Ultrasound: What It Would Look Like

Week 37 Ultrasound: What It Would Look Like

Week 37 Ultrasound: What It Would Look Like

Week 39 Ultrasound: What It Would Look Like

Week 39 Ultrasound: What It Would Look Like

Week 40 Ultrasound: What It Would Look Like

Week 40 Ultrasound: What It Would Look Like

Week 38 Ultrasound: What It Would Look Like

Week 38 Ultrasound: What It Would Look Like

Week 14 Ultrasound: What It Would Look Like

Week 14 Ultrasound: What It Would Look Like

Week 15 Ultrasound: What It Would Look Like

Week 15 Ultrasound: What It Would Look Like

Week 16 Ultrasound: What It Would Look Like

Week 16 Ultrasound: What It Would Look Like

Week 17 Ultrasound: What It Would Look Like

Week 17 Ultrasound: What It Would Look Like

Week 19 Ultrasound: What It Would Look Like

Week 19 Ultrasound: What It Would Look Like

Week 20 Ultrasound: What It Would Look Like

Week 20 Ultrasound: What It Would Look Like

Week 22 Ultrasound: What It Would Look Like

Week 22 Ultrasound: What It Would Look Like

Week 25 Ultrasound: What It Would Look Like

Week 25 Ultrasound: What It Would Look Like

Week 26 Ultrasound: What It Would Look Like

Week 26 Ultrasound: What It Would Look Like

Week 27 Ultrasound: What It Would Look Like

Week 27 Ultrasound: What It Would Look Like

Week 21 Ultrasound: What It Would Look Like

Week 21 Ultrasound: What It Would Look Like

Week 18 Ultrasound: What It Would Look Like

Week 18 Ultrasound: What It Would Look Like

Week 24 Ultrasound: What It Would Look Like

Week 24 Ultrasound: What It Would Look Like