Third trimester · Week 38 of 40

Pregnancy week 38: late early term

Brain still developing — full term at 39 weeks. Size of a leek.

Pregnancy week 38

Where you are in pregnancy

You're in the third trimester. Most growth, baby preparing for birth.

What's happening to baby at week 38

Brain still developing — full term at 39 weeks. Size of a leek. The full physical and neurological development happening this week is part of a continuous timeline — for the complete picture across all 40 weeks, see the complete pregnancy pillar.

What's happening to your body

Each pregnancy week brings physical changes. Common at week 38: hormonal shifts driving symptoms, blood volume changes, uterine growth (after week 12), or physical preparation for delivery (third trimester). Track symptoms in Wermom App for patterns.

What to do this week

Red flags this week

Always call your provider for: heavy bleeding, severe one-sided pain, severe headache with visual changes, signs of preterm labor, sudden swelling, persistent severe vomiting, decreased fetal movement.

Track week 38 with Wermom App

Week-by-week guidance + symptom tracker + appointment reminders

Try Wermom App free