At 19 weeks pregnant, you’re in for a blast with the pregnancy. You’re well into your second trimester and almost halfway through your pregnancy! With this comes a burst of baby movements, and you’re a little closer to seeing your baby up close on an ultrasound.
A 19-week baby’s size is comparable to a mango, measuring about 15 cm (about 6 inches) and weighing 230g (±8.5 ounces). The baby busy is developing their senses, with tiny ears becoming more responsive to sounds. This is also a time when many mums-to-be start to feel their baby’s movements more clearly. Here’s a quick visual guide to showcase what a 19-week fetus looks like at a glance.
If you want to learn more about your pregnancy progression, you can find it in our pregnancy week-by-week breakdown.
You might notice symptoms like backaches or round ligament pain as your body adapts to the growing bump. Staying active, hydrated, and listening to your body’s needs can help you navigate these changes smoothly. Let’s explore more about baby size, symptoms, and what signs to watch for this week.
Your baby at 19 weeks
A 19-week-old fetus now has arms and legs that are proportionate to each other and the rest of its body. As they continue to grow, new and important developments occur each week.
Skin coating (vernix caseosa)
A white, wax-like coating called vernix caseosa is now covering your baby’s skin. This greasy coating aids and protects the rest of their body from several things.
It shields your baby from the amniotic fluid while in the womb and helps them regulate their body temperature. It also moisturises your baby’s sensitive skin and prevents wrinkling.
Unless your baby is born early, most of the vernix caseosa will be gone at birth. However, the little bit that remains will act as a lubricant for your baby while passing through the birth canal.
Brain development
Your baby’s brain is growing at a remarkable rate creating millions of neurons – the message signals that connect the brain with the muscles. This allows your baby to make purposeful movements.
Your baby’s brain is also designating specialised areas for the five senses: sight, sound, smell, taste, and touch.
Baby fat
White fat tissue (which stores excess energy) has already started to develop in your baby. Now, brown fat starts to develop in the 19-week fetus.
This type of fat is very important for newborns and will help keep them warm once they are born. Your baby will continue to add more layers of fat while in the womb.
Their first set of teeth
Your fetus at 19 weeks starts developing their first set of teeth, although you won’t see the first one pop up until around six to eight months after birth.
Fingerprints and footprints
While fingerprints and footprints start forming in week 12, it’s only between 17 and 19 weeks gestation that they become permanent. These identifiers also become unique, even between identical twins.
ALSO CHECK OUT: Pregnancy Due Date Calculator
Your body at 19 weeks of pregnancy
Pregnancy at 19 weeks can look different for everyone. Your body is changing as your baby bump grows, and you might start to notice certain discomforts or feelings you weren’t aware of before.
Here are some common things you might experience at 19 weeks pregnant:
- Round ligament pain: Occasional abdominal pains can be the result of your growing uterus. The round ligaments that link your uterus to your pelvis have to stretch. This pain usually comes on suddenly in the lower belly or groin area. It’s more often felt when changing positions, laughing, sneezing, or coughing.
- Leg cramps: It’s common for pregnant women in their second and third trimesters to experience these painful spasms. While they can occur during the day, they’re likely the other thing keeping you up at night besides wondering how to decorate the nursery. Get rid of them by straightening your leg and then flexing it, pulling your toes towards your shin.
- Stretch marks: It’s estimated that between 50% and 90% of pregnant women get stretch marks at some stage of pregnancy. This is mostly due to genetics, but there are a few things you can do to decrease your likelihood.
- Increased appetite: Your growing baby’s need for nourishment causes increased appetite and food cravings during pregnancy.
- Constipation: The pregnancy hormone progesterone causes certain muscles to relax, including your bowels. This can cause the food in your digestive tract to hang around longer. However, this might also be caused by the supplements or medication you’re taking. Too much iron, for example, can make constipation worse.
- Backaches: As your belly continues to grow, your centre of gravity starts to shift forward, putting more pressure on your back. Try to maintain good posture and avoid lifting heavy items.
- Heartburn: Although more common in the third trimester, heartburn (also called indigestion or acid reflux) can occur at any time during pregnancy. It can be caused by pregnancy hormones as well as the increasing pressure against your stomach as your baby grows.
- Brain fogginess: Also called “pregnancy brain” or “baby brain”, most pregnant women report memory problems, feeling forgetful, or a lack of concentration. Fatigue can also be a contributing factor to brain fog.
- Dark patches: Due to a pregnancy condition called chloasma, also known as the “mask of pregnancy”, you may notice dark areas on your skin. These most often appear on your forehead, nose, cheeks, and upper lip. Exposure to the sun will darken these pigments even more. They usually go away a few months after giving birth.
- Tiny kicks or movement: This is around the time when you may start to feel your baby’s first movement. If you haven’t yet, don’t panic. Several factors can contribute to feeling a 19-week baby move, including your weight, muscle tone, and your baby’s position.
Taking care of yourself during pregnancy week 19
While you’re creating a new life, it’s important to also make time for yourself and be aware of how you’re feeling.
Here are some tips for taking care of yourself during pregnancy week 19:
- Sleep on your side: It might be time to get adjusted to a new sleeping position. After week 20, it’s not advisable to sleep on your back. Lying belly up places too much weight on the vena cava (a major blood vessel). This interrupted blood flow can cause dizziness, shortness of breath, and nausea.
- Beditate: If you’re struggling to fall asleep, we suggest trying out beditation. This relatively new practice combines meditation and gentle stretches to help you doze off.
- Stay active: Exercise during pregnancy is very beneficial for both mom and baby as long as you feel comfortable. However, it’s important not to overdo it. Activities such as walking, swimming, and low-impact exercises are great choices.
- Drink plenty of water: During pregnancy, it’s important to drink more water than you normally would. This helps produce extra blood, carry nutrients, aid digestion, build new tissue, and flush out toxins. Your increased blood flow during pregnancy can also make you warmer, and you might notice that you sweat more.
- Moisturise: To relieve the itching and dryness caused by stretch marks, keep the affected areas moisturised. Homemade stretch mark oil is a wonderful natural alternative to store-bought brands.
- Buy maternity clothes: Although pregnancy at 19 weeks looks different for everyone, you’ve probably noticed that your shape is beginning to change. This can be an excellent time to purchase some pregnancy clothes or just clothes you feel more comfortable in.
Frequently asked questions about pregnancy at 19 weeks
Here are answers to questions that are often asked about being 19 weeks pregnant.
What is my baby doing at 19 weeks in the womb?
A 19-week-old fetus is putting on weight, gaining a set of teeth, and getting ready to be born in about 21 weeks.
How do I know everything is ok at 19 weeks pregnant?
Nineteen weeks is around the time you can go and get your mid-pregnancy ultrasound, with the doctor scanning the baby’s body, and they’ll let you know how everything is progressing.
Can my baby hear at 19 weeks pregnant?
At 19 weeks, your baby will be able to hear your heartbeat and other sounds inside the body, but they won’t hear anything outside your body.
How big is my baby at 19 weeks?
By around 19 weeks, your baby is roughly the size of a large tomato or mango, measuring about 15–16 cm from head to bottom. Growth continues at a steady pace as bones and muscles develop.
What developments are happening with my baby this week?
Your baby’s senses are becoming more refined, and their arms and legs are now more proportional to their body. They may start to hear sounds like your heartbeat, making them more responsive to the environment.
Can I feel my baby move at 19 weeks?
Many women experience regular “flutters” or kicks around this time. If you haven’t yet felt movement, it could be perfectly normal—especially for first-time mums who may notice movements a bit later.
What pregnancy symptoms might I experience at 19 weeks?
You might feel more energetic than in the first trimester, but some symptoms can include mild backaches, round ligament pain, nasal congestion, and occasional headaches. A growing belly may also cause slight balance changes.
Is weight gain expected at 19 weeks?
Yes, steady weight gain is normal at this stage. How much depends on your pre-pregnancy weight and overall health. Your healthcare provider can give you personalised guidance.
How can I manage back pain or discomfort?
Use proper posture, try gentle exercises or stretches (like prenatal yoga), and consider a supportive pillow for sleeping. If back pain is severe or persistent, consult your midwife or doctor.
Should I have an ultrasound at 19 weeks?
Many women have the detailed anatomy scan between 18 and 20 weeks. This ultrasound checks the baby’s development, screens for potential issues, and can sometimes reveal the baby’s sex if you choose to know.
What dietary considerations should I have at 19 weeks?
Continue with a balanced diet rich in fruits, vegetables, lean proteins, whole grains, and dairy or alternatives. Ensure you’re getting enough iron, calcium, vitamin D, and folic acid.
Is it safe to exercise during the second trimester?
In most cases, moderate exercise like walking, swimming, or prenatal yoga is beneficial, helping maintain fitness and reduce stress. Always discuss any specific concerns or limitations with your healthcare provider.
What if I feel dizzy or lightheaded at 19 weeks?
This can be due to hormonal changes and increased blood volume. Staying hydrated, eating regular meals, and moving slowly from sitting or lying positions may help. If dizziness is severe, seek medical advice.
How can I cope with stress and anxiety at this stage of pregnancy?
Practise relaxation techniques like deep breathing or mindfulness, and lean on friends, family, or support groups. Antenatal classes can also provide reassurance and practical knowledge.
When should I contact my doctor or midwife?
If you notice any unusual or concerning symptoms—such as severe pain, sudden swelling, heavy bleeding, or decreased baby movements—get in touch with your healthcare provider promptly.
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