How Developed Is A Baby At 27 Weeks?

27 Weeks Pregnant BellySource:

Congratulations on being 27 weeks pregnant! You are now in the third trimester of your pregnancy, and your baby is growing at a fast pace. You may be wondering how developed your baby is at 27 weeks. This article will explore the various developments your baby goes through during this week.

Baby’s Size and Weight

At 27 weeks, your baby is about the size of a head of cauliflower, measuring around 14.8 inches in length and weighing approximately 2 pounds. Your baby’s body is still thin, but it is starting to plump up as fat is deposited under the skin. Your baby’s skin is still translucent and will remain so until the fat deposits increase.

Baby’s Brain Development

Your baby’s brain is still developing rapidly at 27 weeks. The brain is now capable of controlling basic functions such as breathing, heartbeat, and body temperature. The cerebral cortex, the part of the brain that controls thinking, memory, and consciousness, is also developing fast.

Baby’s Senses

Your baby’s senses are becoming more refined at 27 weeks. Your baby’s eyes can now open and close, and they can perceive light and dark. Your baby’s ears can hear sounds from inside and outside the womb. Your baby can also taste the amniotic fluid that surrounds them, which may help them develop a liking for certain flavors.

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Baby’s Movement

At 27 weeks, your baby is very active. You may feel your baby kicking, punching, and even hiccupping. Your baby’s movements are becoming more purposeful and coordinated as the nervous system continues to develop.

Baby’s Lungs

Your baby’s lungs are still immature at 27 weeks, but they are developing rapidly. The lungs are producing surfactant, a substance that helps keep the air sacs in the lungs from collapsing. This process is essential for your baby’s survival outside the womb.

Baby’s Sleep Patterns

Your baby is sleeping and waking at regular intervals at 27 weeks. The sleep patterns are essential for the baby’s brain development, as the brain processes information and consolidates memories during sleep. Your baby may even have dreams at this stage!


At 27 weeks, your baby is growing at a rapid pace and developing in many ways. Your baby’s brain, senses, movement, lungs, and sleep patterns are all developing at this stage. It is essential to take care of yourself and your baby during this time by eating a healthy diet, staying active, and attending regular prenatal checkups.

Frequently Asked Questions

Q: What should I expect at my 27-week prenatal checkup?
A: Your healthcare provider will measure your belly, check your blood pressure, and listen to your baby’s heartbeat. They may also order some tests to check for any potential complications.

Q: Is it safe to travel at 27 weeks pregnant?
A: It is generally safe to travel during the second trimester, but it is always best to consult with your healthcare provider before making any travel plans.

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Q: How much weight should I have gained by 27 weeks?
A: The recommended weight gain for a woman with a healthy BMI is around 1 pound per week during the second and third trimesters. By 27 weeks, you should have gained around 15-20 pounds.

Q: Can I still exercise at 27 weeks pregnant?
A: Yes, exercise is essential during pregnancy. However, it is best to consult with your healthcare provider before starting any exercise program.

Q: What should I do if I experience any complications at 27 weeks?
A: Contact your healthcare provider immediately if you experience any unusual symptoms such as vaginal bleeding, severe abdominal pain, or decreased fetal movement.

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