Third Trimester

Pregnancy Week 38

Your baby is about the size of a leek 🧅 — ready for birth.

Week 37Week 38 / 40Week 39
🧅

Size comparison

≈ Leek

Length

49.8 cm

Weight

3.1 kg

Milestone

Ready for birth

About 2 weeks to go until your due date (week 40).

Baby's development at week 38

Your baby is ready. The lungs produce surfactant independently; all reflexes needed for life outside the womb — sucking, rooting, grasping — are fully functional.

Know the difference between Braxton Hicks and true labour — regular, intensifying, and lasting longer.

Common symptoms at week 38

Mucus plug may be lostBraxton Hicks strongLoose stoolsPelvic pressure

Eat more of

  • ✓Calcium & Vitamin K (broccoli, kale)
  • ✓DHA-rich fish (sardines, salmon — cooked)
  • ✓Iron-rich foods to prevent anaemia
  • ✓Fibre-rich foods to combat constipation
  • ✓Small frequent meals to ease heartburn
  • ✓Dates (studies suggest easier labour)

Foods to avoid

  • ✕Alcohol
  • ✕Gas-producing foods (beans, cabbage) if uncomfortable
  • ✕Very spicy food if causing heartburn
  • ✕Raw/undercooked meat
  • ✕High-sodium processed food
  • ✕Large meals that worsen reflux

Medically reviewed by First OPD Medical Team. Last reviewed on .

Based on average milestones from World Health Organization (WHO), ACOG, NHS UK. Educational only — not a substitute for personalised medical advice.

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