Pregnancy Week 37 — Baby Development, Size & What to Expect

Week 37 of pregnancy — 3rd trimester. Baby is the size of a winter melon 🍉, approximately 48.5cm long and weighing 2.86 kg. Full term! Safe to deliver. Baby has firm grasp. All organs mature. 92% of the 40-week journey complete, 3 weeks remaining.

PREGNANCY WEEK 373rd TRIMESTER

🍉

winter melon

baby is about the size of a winter melon

WEEK

37

of 40

LENGTH

48.5cm

crown to rump

WEIGHT

2.86 kg

approximate

Progress92% complete
Wk 13rd Trimester (Weeks 27–40)Wk 40

3 weeks remaining · Full term! Safe to deliver. Baby has firm grasp. All organs mature.

WEEK 37 — BABY'S DEVELOPMENT

3RD TRIMESTER · Weeks 27–40

Full term! Safe to deliver. Baby has firm grasp. All organs mature.

HOW YOU MAY FEEL

Full term milestone. Labour signs to watch for. Weekly check-ups.

WEEK 37 KEY FACTS

Gestational age

Week 37

Trimester

3rd (T3)

Baby length

48.5cm

Baby weight

2.86 kg

Progress

92% complete

Weeks left

3 weeks

FREQUENTLY ASKED QUESTIONS

What happens at week 37 of pregnancy?

At week 37 of pregnancy (3rd trimester):\n\nBaby development: Full term! Safe to deliver. Baby has firm grasp. All organs mature.\n\nBaby size: winter melon 🍉\nLength: approximately 48.5cm (crown to rump)\nWeight: approximately 2.86 kg\n\nPregnancy progress: 92% complete (3 weeks remaining)\n\nGestational age is counted from the first day of your last menstrual period (LMP), not from conception. Week 37 begins on day 253 and ends on day 259 from your LMP.

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Pregnancy week 37 · 3rd trimester · Baby size: winter melon 🍉 · 48.5cm · 2.86 kg · Sources: ACOG, WHO fetal growth data