At week 23 of pregnancy, your baby is now about the size of an eggplant and increasingly looks like a newborn—just smaller, with less body fat and more translucent skin. This week brings noticeable fetal movements, growth milestones, and new symptoms for the mother. Here’s everything you need to know about week 23 of pregnancy.
Fetal Development at week 23 of pregnancy
At 23 weeks, your baby measures approximately 27 cm (10.5 inches) and weighs around 500–550 grams (about 1.2 pounds). This week marks rapid neurological, respiratory, and sensory development.

Movement and Sensory Response
Your baby is more active than ever. Many mothers feel regular kicks, rolls, and stretching. The baby can respond to familiar sounds, especially the mother’s voice, and may move in reaction to music or external noise.
Lung and Respiratory Growth
Although the lungs are still immature, the baby is practicing breathing movements. Air sacs (alveoli) continue forming, preparing for real breathing after birth.
Brain and Nervous System Development
The brain is growing rapidly, forming millions of new connections. The skull bones remain flexible and not fully fused, allowing space for brain expansion.
Physical Appearance
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Eyelids may begin opening and closing.
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Skin is thin, reddish, and slightly transparent.
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More pigment and subcutaneous fat begin forming.
Common Symptoms for Mothers in Week 23
Back Pain and Pelvic Pressure
Due to the expanding uterus and shifting center of gravity, back pain and pelvic discomfort are common.
Heartburn and Indigestion
Hormonal changes relax the esophageal sphincter, leading to acid reflux. Smaller meals help.
Increased Baby Movements
Stronger, more rhythmic kicks are normal and reassuring.
Mild Swelling
Slight swelling in the feet and hands is typical due to fluid retention.
Fatigue
The body is working harder to support the growing baby, which may cause increased tiredness.
Medical Care Tips for week 23 of pregnancy
Monitor Blood Pressure
High blood pressure or sudden swelling may signal preeclampsia and requires immediate attention.
Take Prenatal Supplements
Continue iron, folic acid, calcium, and vitamin D based on your doctor’s instructions.
Stay Hydrated
Proper hydration helps reduce swelling, prevent Braxton Hicks contractions, and avoid constipation.
Track Baby Movements
Sudden reduction in movements may need evaluation.
Avoid Heavy Lifting
Intense exercise or lifting heavy objects may strain pelvic joints and is not recommended.
Ultrasound at week 23 of pregnancy

A week 23 ultrasound may be performed to evaluate:
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Baby’s growth and size
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Placenta location
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Amniotic fluid levels
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Fetal movements and heart function
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Structural development and potential abnormalities
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Clear gender determination (if desired)
Baby’s facial features, limb movements, and some eye motion may be visible during this scan.
Nutrition & Exercise Tips in week 23 of pregnancy

Healthy Eating
Focus on:
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Small, frequent meals
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Fruits and vegetables
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Lean protein
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Whole grains
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Adequate hydration
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Limiting sugary and greasy foods
Smart Snack Alternatives
If you crave unhealthy snacks:
| Craving | Healthier Alternative |
|---|---|
| Chips | Low-fat pretzels or air-popped popcorn |
| Chocolate cake | A small piece of dark chocolate |
| French fries | Oven-baked potatoes |
| Ice cream | Low-fat yogurt or fruit sorbet |
| Soda | Natural fruit juice diluted with water |
Exercise Recommendations

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20–30 minutes of walking daily
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Prenatal yoga or stretching
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Avoid contact sports or high-impact movements
Warning Signs in week 23 of pregnancy
Seek immediate medical care if you experience:
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Decreased or absent fetal movements
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Regular painful contractions
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Vaginal bleeding or unusual discharge
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Strong headaches, vision changes, or sudden severe swelling
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Fever or signs of infection
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Sharp abdominal pain
These may indicate preterm labor, infection, or preeclampsia.
Frequently Asked Questions (FAQ)
How many months is 23 weeks pregnant?
You are in the second half of month 5, within the second trimester.
Are multiple ultrasounds harmful?
There is no evidence that medically necessary ultrasounds harm the baby. However, they should be done only when indicated and by trained professionals.
Can you see the baby clearly at week 23?
Yes. The baby’s face, limbs, and movements are typically visible during a week 23 ultrasound.
What is the normal weight for a 23-week fetus?
Around 500–550 grams (1.1–1.2 lbs).
Is swelling at week 23 normal?
Mild swelling is common. Sudden or severe swelling may indicate preeclampsia.
Why are baby movements stronger this week?
Muscle and nerve development enable more coordinated and forceful movements.
Final Thoughts
Week 23 is an exciting stage filled with growth milestones and increasing interaction between you and your baby. While most symptoms are normal, it’s important to monitor your body carefully and seek medical advice if anything feels unusual. With the right nutrition, regular movement, and proper prenatal care, you can enjoy this stage with confidence and peace of mind.


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