Third trimester ยท Week 37 of 40

Pregnancy week 37: early term

Early term begins. Size of swiss chard.

Pregnancy week 37

Where you are in pregnancy

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

What's happening to baby at week 37

Early term begins. Size of swiss chard. The full physical and neurological development happening this week is part of a continuous timeline โ€” 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 37: 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 37 with Wermom App

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

Try Wermom App free