Pregnancy Week 30 — Baby Development, Size & What to Expect

Week 30 of pregnancy — 3rd trimester. Baby is the size of a cabbage 🥬, approximately 40.0cm long and weighing 1.32 kg. Red blood cells producing in bone marrow. Toenails visible. 75% of the 40-week journey complete, 10 weeks remaining.

PREGNANCY WEEK 303rd TRIMESTER

🥬

cabbage

baby is about the size of a cabbage

WEEK

30

of 40

LENGTH

40cm

crown to rump

WEIGHT

1.32 kg

approximate

Progress75% complete
Wk 13rd Trimester (Weeks 27–40)Wk 40

10 weeks remaining · Red blood cells producing in bone marrow. Toenails visible.

WEEK 30 — BABY'S DEVELOPMENT

3RD TRIMESTER · Weeks 27–40

Red blood cells producing in bone marrow. Toenails visible.

HOW YOU MAY FEEL

Braxton Hicks frequent. Colostrum may leak. Birth plan preparation.

WEEK 30 KEY FACTS

Gestational age

Week 30

Trimester

3rd (T3)

Baby length

40cm

Baby weight

1.32 kg

Progress

75% complete

Weeks left

10 weeks

FREQUENTLY ASKED QUESTIONS

What happens at week 30 of pregnancy?

At week 30 of pregnancy (3rd trimester):\n\nBaby development: Red blood cells producing in bone marrow. Toenails visible.\n\nBaby size: cabbage 🥬\nLength: approximately 40.0cm (crown to rump)\nWeight: approximately 1.32 kg\n\nPregnancy progress: 75% complete (10 weeks remaining)\n\nGestational age is counted from the first day of your last menstrual period (LMP), not from conception. Week 30 begins on day 204 and ends on day 210 from your LMP.

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Pregnancy week 30 · 3rd trimester · Baby size: cabbage 🥬 · 40.0cm · 1.32 kg · Sources: ACOG, WHO fetal growth data