Fetal Development

No matter what week of pregnancy, you'll find something help within these 42 weeks.

The amazing growth that takes in pregnancy starts with the joining of a sperm and egg. From the beginning your baby goes through a miraculous journey towards birth. Watch that development in every stage with pictures of fetal development.

This gallery is a fetal development gallery to see how your baby grows in pregnancy.

These ultrasound photos take you week by week through pregnancy, showing you babies at various stages.

Here is a quick tour of pregnancy month by month, looking at fetal development as your baby grows through ultrasound pictures and text describing the details. Watch your baby grow from conception to birth.

How did you feel when you heard your baby's heart beat for the first time?

This is a quick video to show you the basics of fetal development.

Pregnancy is divided into three distinct pregnancy stages.

What is a normal fetal heart rate? Does your stage of pregnancy change the normal fetal heart rate?

Here are ultrasound photos taken in the first trimester. This includes ultrasound photos with 2D and 3D technology as well as ultrasound photos or twins, triplets and other multiples.

From 3D ultrasound to 2D ultrasound, you can see your baby grow, including sex determination ultrasounds in the middle of the 2nd trimester. You'll also see twin and other multiple ultrasound photos.

These 3rd trimester ultrasound are 2D and 3D, including the girl ultrasounds and boy ultrasounds. Here you can see how baby has grown and prepares for birth in these ultrasound photos.

Share your story about feeling your baby move.

What do you call your fetus?

A baby's heart beat as heard by doppler at 10 weeks 2 days from LMP.

Towards the end of your pregnancy, you might be given a guess as to how big your baby is via ultrasound. But studies show that this isn't always very accurate and basically, how would you use this information?

A definition of the word Lanugo.

The Visible Embryo web site is an evolving educational resource on human development from conception to birth.

A simple chart of measurements for early pregnancy.

Pictures and brief descriptions of different phases of pregnancy. Great photos of babies inside wombs, broken down by trimester.

Pictures of embryos, sperm, eggs, and more.

Many photographs of ultrasound images at different stages of pregnancy. This site includes an FAQ on ultrasound, and the different types of ultrasound available.

The midpregnancy ultrasound is used to scan for fetal anomalies or problems with your baby.

This gallery contains pictures of 3D ultrasounds from all stages of pregnancy. You'll find many photos from various 3D shots.

Can you believe that you're nearing the end of your second trimester? Only 15 weeks until the estimated due date. Here are pregnancy photos from the second trimester, 25 weeks pregnant in this belly gallery.

Do you have any stretch marks yet? Here are pregnancy photos from the second trimester, 26 weeks pregnant in this belly gallery.

Do you have any stretch marks yet? Here are pregnancy photos from the second trimester, 26 weeks pregnant in this belly gallery.

You can now rent a fetal doppler for home use. Is this a wise move for the average pregnant woman?

Hearing your baby's heartbeat for the first time is something amazing. When you don't hear it, you panic. Here is a chance to read stories from other mothers who lived through this experience.