16 Week Baby Development In Womb: What To Expect

As an expectant mother, you’re probably curious about how your baby is developing inside of you. At 16 weeks pregnant, you’re well into your second trimester and your baby has already gone through some significant changes! In this article, we’ll explore some of the key milestones of 16 week baby development in the womb.

Size and Appearance

16 Week Baby Development In WombSource: bing.com

At 16 weeks, your baby is around 4.6 inches long and weighs about 3.5 ounces. Your baby’s head is still quite large in proportion to the rest of their body, but as they continue to grow this will even out. Your baby is also starting to develop more defined facial features, with eyebrows and eyelashes beginning to grow.


One of the most exciting things about 16 week baby development in the womb is that your baby is starting to become more active! You may not feel movement just yet, but your baby is wiggling and floating around in there. They’re also starting to develop a sense of touch, and may even begin grasping onto their umbilical cord.

Organs and Systems

By 16 weeks, your baby’s organs and systems are all in place and functioning – though they still have some maturing to do. Your baby’s circulatory system is now fully operational, with a more mature heart that is pumping blood throughout their body. The digestive system is also starting to work, with your baby now swallowing amniotic fluid and producing meconium (the baby’s first bowel movement).

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Your baby’s senses are also starting to develop at 16 weeks. They can now hear sounds from the outside world, like your voice or music, even though their ears are not yet fully formed. Your baby can also taste the amniotic fluid they swallow, which will help them develop a sense of taste later in life.


By 16 weeks, your baby’s gender is usually identifiable during an ultrasound. If you choose to find out your baby’s gender, this is a great time to do it!

Frequently Asked Questions

When will I feel my baby move?

Most women feel their baby move for the first time between 16 and 22 weeks. If you’re a first-time mom, it may take a little longer to feel those flutters.

Is it safe to have sex during pregnancy?

In most cases, yes! As long as you’re having a healthy pregnancy, sex is generally safe. However, it’s always a good idea to talk to your doctor if you have any concerns.

What should I be eating during pregnancy?

A healthy diet during pregnancy is crucial for your baby’s development. Make sure to eat a variety of fruits, vegetables, whole grains, and lean proteins. Talk to your doctor about any supplements you may need, like folic acid or iron.

How do I know if I’m having Braxton Hicks contractions?

Braxton Hicks contractions are common in the second and third trimesters. They feel like a tightening or squeezing sensation in your uterus, but they’re usually not painful. If you’re not sure if you’re having Braxton Hicks contractions, talk to your doctor.

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When should I start preparing for childbirth?

It’s never too early to start preparing for childbirth! Consider taking a childbirth education class, talking to your doctor or midwife about your birth plan, and practicing relaxation techniques like deep breathing or meditation.

In conclusion, 16 week baby development in the womb is an exciting time for both you and your growing baby. By understanding what’s happening inside your body, you can better prepare for the arrival of your little one. Remember to talk to your doctor if you have any questions or concerns!

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