3rd Trimester

Fetal Development
Third Trimester (Last Three Months)
Your baby continues to grow and develop as your due date approaches. Let’s take a look at what will happen. Your pregnancy has started to count down. You are bored and want to see your baby as soon as possible. However, events are still going on in your uterus. Let’s examine the developments week by week.
28th week
Your baby is 35-37 cm tall and weighs around 1000-1200 g. He can close and open his eyes. The color of his/her eyes is also clear, but if this color is especially blue-green, it may change color up to 6 months. They will sleep for 20-30 minutes. Your baby’s movements will also become more pronounced, especially when lying down or sitting.
29th Week
The bones are fully developed but still soft and flexible. This week your baby starts to store iron, calcium and phosphorus. His kicks can even hurt you as his movements are more frequent and powerful.
Week 30
She will now gain 200-250 g every week until 37 weeks. She can start practicing breathing in a certain rhythm using her diaphragm. If she hiccups, you may feel it as a twitching or contraction in your uterus.
Week 31
If your baby is a boy, his testicles go from the kidneys to the scrotum in the groin. A girl’s clitoris also becomes prominent. Their lungs are developing a little more, but they are still not fully developed. If your baby is born this week, he or she will probably need a ventilator to breathe. Problems such as brain bleeding will be less common than a few weeks ago.
Week 32
Your baby is 37-40 cm long and weighs 1600-2000 g. Almost all premature babies born this week survive. The fine quince hairs, called lanugo, start to fall out this week. Because your uterus is now thicker, you may feel your baby’s kicks and other movements less. You may want to take note of your baby’s movements from time to time, especially if you think they are decreasing. Tell your doctor if you detect less than 10 movements in two hours.
Week 33
Your baby’s eyes can distinguish light. Pupils can narrow and dilate. She continues to gain 200-250 grams per week. Their lungs are fully developed and almost all babies born this week are healthy, although they require more intensive care.
34th Week
The pasty white protective layer called vernix is getting thicker this week. You can see the remnants of this layer when your baby is born. This is especially noticeable on his/her hands, under the arms, behind the ears and in the groin area. The soft quince hairs have completely disappeared.
35th week
Your baby continues to grow and store fat. Because of the tightness in your uterus, you can feel it moving and stretching, even if it can’t kick very much.
Week 36
Your baby is 40-45 cm tall and weighs between 2500-2750 g. Finally, fat is stored on the face and the sucking muscles become stronger and ready to suck. Your baby’s head may start to move downwards to prepare for birth.
Week 37
By the end of this week, your baby is ready to be born. As fat storage continues, her body gradually starts to become rounder.
Week 38
Your baby now weighs 3000-3250 grams. Every day the nervous system develops more and more and starts to work better. This development will continue throughout childhood and adolescence.
39th week
Your baby’s fat stores under the skin have increased to the point that it needs very little help from you to keep warm. The placenta continues to provide antibodies to help your baby fight infection for the first six months after birth. If you breastfeed, extra antibodies will also come from your milk.
Week 40
Your baby is 50 cm long and weighs around 3250-3500 g. If you are worried that your due date is near and nothing has happened, don’t worry. It is much more common for labor to be a week late (or early) than on time. In fact, only 5% of women give birth on their expected due date. Even though you are nearing the end of your pregnancy, it is still very important to make sure that you live a healthy life.
Please remember the following list of do’s and don’ts;
Do’s
Take vitamins prescribed by your doctor.
Make sure you gain weight properly.
Do the exercises recommended by your doctor regularly.
Eat a healthy diet.
Pay attention to stress and other health problems.
Go for regular check-ups with your doctor. In the last month of your pregnancy, this will probably be once a week.
What not to do
Avoid smoking and alcohol.
Do not take medication without consulting your doctor.
These are the last days of your pregnancy, so make the most of them. From now on, a whole new chapter in your life will begin.
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