Week 24 of Pregnancy
"Viability" threshold. Lung development is the major focus.
Fetal size
Corn
- Length
- 30 cm
- Crown-to-heel
- Weight
- 600 g
Fetal development
- Alveoli begin forming in the lungs.
- Facial expressions are increasingly varied.
- Rapid weight gain.
Maternal changes
- The uterus is now well above the belly button.
- Stretch marks may become more visible.
Recommended checkups
- Glucose challenge test (50g GCT) for gestational diabetes; OGTT follows if needed.
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Textbook averages. Individual variation is wide and this is not medical advice — confirm with your OB.