Pregnancy Week 19

Learn what is happening with your baby's development in week 19 and what signs of trouble to watch for.

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

How big is baby?

Your baby is now about the size of a mango. His legs are now longer than his arms, and he'll start giving you "hello" jabs at regular intervals, which you may be able to feel if this is your second or third pregnancy. First-time moms still might not feel anything for a few more weeks.

Baby's Length: 6.02in.
Baby's Weight: 8.47oz.
Fetus at Week 19 What the baby looks like at week 19 of fetal development. Med ART Studios Explore More

Baby's Development

Vernix caseosa begins to coat the skin. The greasy, cheese-like white coating helps regulate body temperature and protects your baby's skin while it's submerged in amniotic fluid. By the time your baby is born, most of the vernix will be gone. Your baby's heartbeat is growing stronger now and it's about twice as fast as yours.

Baby Week 19

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Approximately the size of a softball, your developing fetus now weighs about ½ pound.Unique fingerprints have now formed on the tips of the fingers and tiny blood vessels are visible under the skin.The fetus is able to make more intricate facial gestures, such as frowning or smiling.
Week by week baby ultrasound image. Week by week baby ultrasound image. American Institute of Ultrasound in Medicine - AIUM.org

Week 19 Ultrasound

Your baby's legs and arms are continuing to develop and add muscle. You may be able feel your baby's movements now, or within the next week or two.

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Watch Baby's Growth

Feeling Baby Move: Weeks 18 to 21 of Pregnancy

Mom's changing body

Not as graceful as you used to be? Don't worry if you're a bit more wobbly these days; your growing belly has shifted your center of gravity, which can make you more prone to slips and spills. You'll adjust eventually, subconsciously tweaking your posture and gait to offset that expanding tummy. But these changes (and your compensations for them) can throw your spinal alignment out of whack, triggering an achy back. To prevent the pain, stand up straight when you walk so your hips and shoulders stay lined up. Sitting with your feet slightly elevated and sleeping on your side in a fetal position (just like baby!) can help.

Weekly Tip

Pay attention when you pee, since moms-to-be are at an increased risk of developing urinary tract infections (UTIs). These occur when bacteria builds up in your bladder, which is more likely to happen now because of hormonal changes. If you find yourself urinating much more often than usual or if it burns when you do, call your doctor. A dose of antibiotics should nip symptoms in the bud. Know you're prone to UTIs? Start sipping a daily glass of pure unsweetened cranberry juice; it contains bacteria-fighting compounds that may help head off infections.

Pregnancy Confidential Podcast

Do You Think I'm Sexy? The Pregnancy Body Image Episode.

Everyone loves to talk about the pregnancy glow, and it's usually one of the questions you'll get asked at parties: How are you feeling; are you glowing yet? At Week 19, you may still be feeling more chubby than blossoming, and you might be battling your share of pregnancy acne and the occasional stretch mark, so feeling like a sexy mama could seem far from achievable right now. But this can change or it may not apply at all—there are plenty of women who feel their sexiest during pregnancy: it's sometimes the first time in their lives when they really feel like they can let go and embrace their bodies, which can truly be amazing.

This Week's To-Do List

Must-Reads

Feed Your Baby's Brain During Pregnancy

Certain foods have been proven to positively affect your baby's memory and capacity to learn, and others can hinder proper brain development. Here, what to eat and what to avoid while you're pregnant.

C-Sections 101

Every year, about 30 percent of babies born in the U.S. are delivered by cesarean section. Here's the lowdown on why c-sections happen and what you need to know to prepare yourself.

Feeling Baby Move: Weeks 18 to 21 of Pregnancy

You'll start feel your baby's fluttering movements (called quickening) between now and 22 weeks. Get ready, mama: Feeling him kick is one of the most magical parts of being pregnant.

4 High-Risk Pregnancy Conditions

How to have a healthy pregnancy and birth when you're diagnosed with complications like preterm labor, preeclampsia, gestational diabetes or placenta previa.

What Type of Dad Will He Be?

Chances are, the dad-to-be in your life falls into one of these five categories. So take a break from obsessing about childcare and strollers to find the dad style that best describes your guy.

Your Developing Baby: Week 19

What's going on with your baby in pregnancy week 19? Find out all about important pregnancy milestones and exciting fetal development specific to this week of pregnancy!