Pregnancy Week 34 — Baby Development, Size & What to Expect

Week 34 of pregnancy — 3rd trimester. Baby is the size of a cantaloupe 🍈, approximately 44.9cm long and weighing 2.15 kg. Central nervous system and lungs maturing. Most babies head-down by now. 85% of the 40-week journey complete, 6 weeks remaining.

PREGNANCY WEEK 343rd TRIMESTER

🍈

cantaloupe

baby is about the size of a cantaloupe

WEEK

34

of 40

LENGTH

44.9cm

crown to rump

WEIGHT

2.15 kg

approximate

Progress85% complete
Wk 13rd Trimester (Weeks 27–40)Wk 40

6 weeks remaining · Central nervous system and lungs maturing. Most babies head-down by now.

WEEK 34 — BABY'S DEVELOPMENT

3RD TRIMESTER · Weeks 27–40

Central nervous system and lungs maturing. Most babies head-down by now.

HOW YOU MAY FEEL

Weekly appointments begin. Breathing easier as baby descends (lightening).

WEEK 34 KEY FACTS

Gestational age

Week 34

Trimester

3rd (T3)

Baby length

44.9cm

Baby weight

2.15 kg

Progress

85% complete

Weeks left

6 weeks

FREQUENTLY ASKED QUESTIONS

What happens at week 34 of pregnancy?

At week 34 of pregnancy (3rd trimester):\n\nBaby development: Central nervous system and lungs maturing. Most babies head-down by now.\n\nBaby size: cantaloupe 🍈\nLength: approximately 44.9cm (crown to rump)\nWeight: approximately 2.15 kg\n\nPregnancy progress: 85% complete (6 weeks remaining)\n\nGestational age is counted from the first day of your last menstrual period (LMP), not from conception. Week 34 begins on day 232 and ends on day 238 from your LMP.

RELATED CALCULATORS

MORE PREGNANCY CALCULATORS

Was this calculator helpful?

Pregnancy week 34 · 3rd trimester · Baby size: cantaloupe 🍈 · 44.9cm · 2.15 kg · Sources: ACOG, WHO fetal growth data