The final stage of pregnancy, the third trimester, is a very special time for you, the mother- to-be. The thought of being able to hold your baby in your arms in just a few days brings a sense of joy. During this time, the little wonder inside your womb completes some of the final stages of its development before coming out. So let's take a look at what happens to your baby during these three months, and how it prepares to enter the world.
Seventh month: The time when the baby gradually grows
As the seventh month begins, your baby's development changes dramatically. This is when fat deposition begins . In other words, your baby starts to get a little bigger. This layer of fat is very important. It helps regulate your baby's body temperature after birth. By the end of this month, your baby will be about 36 centimeters (14 inches) long and weigh between 900 and 1800 grams (2-4 pounds).
Another amazing thing that happens during this time is that the baby's hearing ability fully develops .
Just think, the things you say, the sound of your heart beating, the songs you listen to, and even your father's voice... all of this is now clearly audible to the baby. So this is the best time to talk and sing to your baby.
Not only that, but your baby is also quite active now. He's constantly changing positions inside the womb. He can also respond to things like sounds and bright lights from outside. If you gently tap his belly, he might even kick in response.
Another important point is that if a premature birth occurs, a baby born after the seventh month has a much higher chance of surviving . However, it is best to remain in the womb until the baby's organs, such as the lungs, are fully developed.
Eighth month: A time of rapid growth of the brain and other organs
By the eighth month, your baby is getting bigger. He is now about 46 centimeters (18 inches) long and weighs about 2.27 kilograms (5 pounds). Body fat is still being deposited . During this time, you may feel your baby kicking more often . This is a very good sign, and it means that your baby is healthy and active.
The most important thing that happens this month is the rapid development of the baby's brain . Billions of nerve cells (neurons) in the brain are developing during this time. As a result, the baby's vision and hearing are now more developed. Even though it is dark inside the womb, he can distinguish and recognize things like bright light coming from outside.
Most of the baby's internal organs are well developed by now. However, the lungs are not yet fully developed . The lungs are one of the last organs to complete development in the baby's body. So this month is very crucial for that.
Ninth month: Final preparations for entering the world
This is the last month of pregnancy . The baby is now almost fully prepared for birth. By the end of this month, the baby will be about 46-51 centimeters (18-20 inches) long and weigh about 3.2 kilograms (7 pounds).
The final changes in the baby's body
- Lung maturity: By now, the baby's lungs are almost fully developed. He now has the strength to breathe on his own after birth.
- Reflexes Coordination: Your baby's reflexes, or involuntary responses, are now well-coordinated. For example, he can blink, close his eyes, turn his head, grasp firmly when something is handed to him, and respond to sounds, lights, and touch.
- Positional change: In preparation for birth, your baby will change position. This usually means that the baby's head will turn down and move into your pelvis . This is also called 'lightening'. When this happens, you may find it easier to breathe because the baby has moved down and the pressure on your lungs is reduced.
In this way, the baby that has grown up in your love for nine months is now waiting for the day when it will meet you. During this time, keep an eye on the changes in your body and the baby's movements. If you have any doubts or anything unusual, talk to your doctor immediately.
| Month | Average baby size (length/weight) | Major developments |
|---|---|---|
| Seventh month | Length: ~36 cm (14 inches) Weight: ~900g - 1800g (2-4 lbs) | The body begins to accumulate fat, the ability to hear is complete, and the ability to respond to sound and light. |
| Eighth month | Length: ~46 cm (18 inches) Weight: ~2.27 kg (5 lbs) | Rapid brain development, further development of vision and hearing, increased body fat reserves, and increased kicking. |
| Ninth month | Length: ~46-51 cm (18-20 inches) Weight: ~3.2 kg (7 lbs) | Lungs are almost fully developed, reflexes are coordinated, and the baby is positioned for birth. |
Take-Home Message
- The third trimester is the final and crucial stage of the baby's growth and development.
- During this time, your baby can hear and feel you. So talking to your baby and singing songs is also very good for their brain development.
- Keep an eye on your baby's movements (kicks). If you notice a sudden decrease or change in them, seek medical advice immediately.
- Listen to your body. Rest, nutritious food, and mental happiness are very important during this time.
- If you have any doubts or problems, do not guess or look for information only on the internet, but consult your doctor.











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