Pregnancy Week 10

Learn what is happening with your baby's development in week 10. Plus, find out what to expect at your first ultrasound, and why you may be experiencing the Pregnancy glow.

Week by week baby size image. Week by week baby size image.

How big is baby?

Your baby is about the size of a kumquat and can stretch his spine. Her eyes and eyelids are more developed and her eyebrows are beginning to grow.

Baby's Length: 1.22in.
Baby's Weight: 0.14oz.
Fetus at Week 10 What the baby looks like at week 10 of fetal development. Med ART Studios Explore More

Baby's Development

Up until now your baby was classified as an embryo, but by the end of this week he will be a fetus and lots of changes are on the way. Paddle-like, or webbed, hands and feet will now separate into fingers and toes, bones will begin to harden and his kidneys are now producing urine. Most impressive? At this point your baby's brain is developing at astounding rates -- nearly 250,000 neurons are forming every minute! The end of the embryonic stage also marks a turning point for development dangers -- your baby is much less susceptible to them now.

Baby Week 10

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The liver and kidneys are formed and starting to function. Fetal waste product, including toxins and carbon dioxide, continue to be removed via the umbilical cord and routed into the mother's blood stream.Although only about the size an olive (1½ inches) and weighing just a quarter of an ounce, the embryo has developed sufficiently to be termed a fetus.Bones and cartilage are forming all over the body, including the limbs. However, at this stage they are still quite soft and fragile.
Week by week baby ultrasound image. Week by week baby ultrasound image. American Institute of Ultrasound in Medicine - AIUM.org

Week 10 Ultrasound

You'll notice in this image that your baby-to-be is looking more and more like a newborn. Her arms and legs are visible, and a recognizable profile can be seen. The bright white areas in the profile are facial bones.

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Watch Baby's Growth

Embryo to Fetus: Weeks 9 to 12 of Pregnancy

Mom's changing body

Loving your new dewy, pregnant glow? Thank the hormones HCG and progesterone (they increase the number of oil glands in your face, making your complexion shinier and smoother) and your boosted blood volume, which can make your skin slightly flushed and plump. And if the girls are giving you all kinds of nice cleavage these days, it's because estrogen and progesterone are spurring milk-producing glands to grow there (and there's plenty more of that to come)!

Weekly Tip

You'll finally get a peek at your baby this week! Your upcoming prenatal visit will include your first ultrasound. Your doctor will be able to point out fingers and toes, and you'll hear your baby's heartbeat. At this time, you may also need a nuchal translucency test, which can assess risks of Down syndrome, other chromosome abnormalities, and congenital heart problems.

Pregnancy Confidential Podcast

Week 10 - Getting Ready for the Big Reveal

At 10 weeks, you've finally come to terms with your pregnancy. Now it's time to start thinking about spreading the word to your friends and family, if you haven't already (hands up if you Instagrammed your positive pregnancy test). Most people start sharing the big news around 12 weeks, but with a status update just a finger tap away, folks are starting to post their reveals even sooner. Whether you choose to speak out now or later, the trend seems to be to go big, bold and creative with your pregnancy reveal. And whether it's a Miley Cyrus parody or a sibling photo shoot, let's face it, it's a little about one­-upping your friends, right?

This Week's To-Do List

Must-Reads

What Will My Baby Look Like?

Everyone wonders who baby will look like, but there's no way to know whether the traits we treasure in ourself, our partner, and our family will pop up in our offspring. However, you can make an educated guess -- here, genetics experts show you how.

Embryo to Fetus: Weeks 9 to 12 of Pregnancy

You're well into your first trimester at this point, and your baby is growing bigger and bigger each day. Watch what it takes for her to become a fetus.

Pregnancy Beauty Changes: The Good, Bad, and Ugly

Are you basking in the pregnancy glow, or are you feeling more gross than glowing? Here, we break down the details on the beauty (and not-so-beautiful) side effects of pregnancy. We assure you they're totally normal, even if they're not all desirable.

The Inside Story: Your Baby in Week Ten

Your baby is growing so fast! Learn what's happening during your 10th week of pregnancy.

Your Developing Baby: Week 10

What's going on with your baby in pregnancy week 10? Find out all about important pregnancy milestones and exciting fetal development specific to this week of pregnancy!

Pregnancy Sex Tips: Fun Sex in Your First Trimester

Will sex be any different now that you're pregnant? Find out how to keep your sex life fun.