Pregnancy Week 23
Your baby is continuing to grow and become more active this week. The lungs are developing, the hearing system is becoming more responsive, and your baby’s movements are becoming stronger and easier to notice.
Your Baby This Week
Lung Development
At week 23, your baby’s lungs continue developing in preparation for breathing after birth.
The lungs are still immature and are not ready to function independently, but important structures are developing and the airways are becoming more complex.
Developing Hearing
Your baby’s hearing continues to mature. Your baby can detect sounds and vibrations and may become familiar with recurring sounds, including your voice and heartbeat.
Stronger Movements
Your baby’s muscles and nervous system continue working together, allowing stronger kicks, stretches, and movements.
As your baby grows, these movements may become increasingly noticeable.
Growing & Gaining Weight
Your baby’s body continues gaining weight and developing more fat beneath the skin. The skin may still appear thin and wrinkled because the body has not yet accumulated much fat.
Growing & Listening
Your baby is about the size of a grapefruit. The lungs and hearing system continue developing while your baby's movements become stronger.
Your Body This Week
Your pregnancy may feel increasingly noticeable as your baby continues growing.
Stronger Baby Movements
You may notice more distinct kicks, rolls, stretches, and other movements. Your baby's activity may vary throughout the day.
Growing Belly
Your uterus continues expanding, which can affect your posture and make certain positions less comfortable.
Heartburn
Heartburn and indigestion can become more noticeable as pregnancy progresses.
Sleep Changes
Finding a comfortable sleeping position may become more difficult as your belly grows. Using pillows for support may help you get more comfortable.
Tips for week 23
- Continue taking your prenatal vitamin every day.
- Eat balanced meals with protein, whole grains, fruits, and vegetables.
- Include iron rich foods regularly.
- Choose calcium rich foods to support bone development.
- Include low mercury, well cooked fish as recommended by your healthcare professional.
- Drink plenty of water throughout the day.
- Eat smaller meals if heartburn is bothering you.
- Avoid lying down immediately after eating if it makes heartburn worse.
- Continue pregnancy-safe physical activity if approved by your healthcare professional.
- Use pillows to support your abdomen, back, or legs while sleeping.
- Get enough rest.
- Avoid alcohol, smoking, and recreational drugs.
- Limit caffeine to 200 mg or less per day during pregnancy.
- Keep your prenatal appointments and recommended screenings.
Nutrition This Week
Your baby’s lungs, brain, muscles, and rapidly growing body require a variety of nutrients.
Omega-3 Fatty Acids
Iron Rich Foods
Calcium Sources
Protein Rich Foods
Folate Rich Foods
Healthy Fats
Fruits & Vegetables
Whole Grains
Stay Hydrated
Nutrition Tip
Include protein and fiber in your meals to help you stay satisfied and support healthy digestion. Pair foods such as beans and vegetables with whole grains for a balanced meal.
Frequently Asked Questions
How big is my baby at Week 23?
Your baby is approximately the size of a grapefruit. Exact measurements vary depending on the timing of development.
What is developing during Week 23?
Your baby’s lungs, hearing system, nervous system, muscles, and bones continue developing while the body gradually gains more weight.
Can my baby hear me at Week 23?
Yes. Your baby’s hearing system continues to mature, and your baby can detect many sounds and vibrations from inside and outside the womb.
Why are my baby's movements becoming stronger?
Your baby is growing larger and the muscles and nervous system are becoming more developed and coordinated. This can make movements easier for you to notice.
Are my baby's lungs developed at Week 23?
The lungs are developing but are still immature. Important structures continue forming in preparation for breathing after birth.
Is heartburn common at Week 23?
Yes. Hormonal changes and the growing uterus can contribute to heartburn and indigestion. Smaller meals and avoiding lying down soon after eating may help.
Week by Week
Explore your pregnancy journey week by week.
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