Week 29: Brain Development
The twenty-ninth week is a time of active brain and nervous system development.
Baby size: Zucchini (115-120 mm)
Baby development
Little fighter with a developed brain
Your baby is becoming increasingly ready for life outside. His brain can already control primitive breathing and body temperature.
What’s happening this week:
- Head: It is growing to accommodate the rapidly developing brain.
- Bones: Actively absorb calcium and become stronger.
- Adrenal glands: Begin producing hormones such as androgens, which will stimulate breast milk production after birth.
- Kicks: Movements become less chaotic and stronger and more purposeful.
Your fetus weighs about 1.15 kg, and its length is over 38 centimeters.
Changes for mom
Heartburn, constipation and other “quirks”
The growing uterus presses on all internal organs, which can intensify unpleasant symptoms. It is important to find ways to ease your condition.
What you may notice:
- Heartburn: Becomes more intense as the stomach is compressed.
- Constipation and hemorrhoids: Common problems due to hormone action and uterine pressure.
- Varicose vein enlargement: May worsen.
- Muscle and joint pain: Weight increases, and the load on the body grows.
These symptoms can be exhausting, but there are ways to combat them. Learn more in the article "Physical Changes of the Body During Pregnancy".
Overview
Week 29: The baby gets stronger, and you — wiser
In the twenty‑ninth week your baby is actively gaining weight through muscles and fat, making its kicks increasingly noticeable. You may notice a heel or elbow protruding on your belly!
He is now the size of a muscat pumpkin. His bones are hardening, and he needs a lot of calcium, which he draws from your body. This is a time when proper nutrition becomes critically important.
For you this is a period when the belly becomes the main character, affecting everything from walking to sleep. Fatigue may return, and everyday tasks will require more effort. This is normal — allow yourself to slow down.
Your baby's kicks are not just movements, but communication. They indicate her good well‑being. Enjoy this connection and don’t forget to count the movements daily.
The third trimester requires you to pay more attention to yourself. To know what to prepare for, read our detailed overview "Third Trimester: What You Need to Know".
Tips for mom
Focus on nutrition and preparing for feeding
Your diet now has huge importance for your baby's bone development. It is also a great time to start preparing for breastfeeding.
What to do:
- Eat enough calcium. Include milk, cheese, yogurt, broccoli, almonds in your diet.
- Combat constipation. Drink plenty of water, eat fiber (vegetables, fruits, bran) and stay physically active.
- Start learning about breastfeeding. Watch videos, read articles, talk to a consultant.
- Rest. If possible, take a daytime nap or simply relax with your legs elevated.
Knowledge is your power. Start preparing for feeding early by reading the article "Basics of Breastfeeding".
Tips for partner
Chief of comfort and logistics
Your help now becomes increasingly important, especially with household matters and creating a comfortable atmosphere.
Your contribution to the joint effort:
- Be patient and compassionate. She may find it physically difficult. Your understanding and support are priceless.
- Help with shopping and heavy tasks. Free her from any burdens.
- Study child care information together. Your confidence about the future will also help her feel calmer.
- Make sure everything is ready. Check whether the hospital bag is packed, the car seat is installed, and the essential items are present.
Joint preparation for birth is the key to success. You can get inspired in our guide to birth preparation in the third trimester.
Checklist
Your action plan for week 29
Moving toward the goal confidently, but without rushing.
- ✅ Review your diet, adding more calcium‑rich foods.
- 💧 Drink at least 8 glasses of water a day to prevent constipation.
- 🤱 Start reading books or articles about breastfeeding.
- 👜 Check and supplement the hospital bag.
- 👶 Continue counting the baby’s movements daily.
- 📚 Refresh your knowledge about newborn needs, by reading the article "Fourth Trimester: Newborn Needs".