Pregnancy Week 10 — Baby Development, Size & What to Expect

Week 10 of pregnancy — 1st trimester. Baby is the size of a kumquat 🍊, approximately 3.1cm long and weighing 4g. Embryonic period ends. Vital organs functional. Fingernails forming. 25% of the 40-week journey complete, 30 weeks remaining.

PREGNANCY WEEK 101st TRIMESTER

🍊

kumquat

baby is about the size of a kumquat

WEEK

10

of 40

LENGTH

3.1cm

crown to rump

WEIGHT

4 g

approximate

Progress25% complete
Wk 11st Trimester (Weeks 1–12)Wk 40

30 weeks remaining · Embryonic period ends. Vital organs functional. Fingernails forming.

WEEK 10 — BABY'S DEVELOPMENT

1ST TRIMESTER · Weeks 1–12

Embryonic period ends. Vital organs functional. Fingernails forming.

HOW YOU MAY FEEL

Waistline thickening. Nausea may begin improving soon.

WEEK 10 KEY FACTS

Gestational age

Week 10

Trimester

1st (T1)

Baby length

3.1cm

Baby weight

4 g

Progress

25% complete

Weeks left

30 weeks

FREQUENTLY ASKED QUESTIONS

What happens at week 10 of pregnancy?

At week 10 of pregnancy (1st trimester):\n\nBaby development: Embryonic period ends. Vital organs functional. Fingernails forming.\n\nBaby size: kumquat 🍊\nLength: approximately 3.1cm (crown to rump)\nWeight: approximately 4g\n\nPregnancy progress: 25% complete (30 weeks remaining)\n\nGestational age is counted from the first day of your last menstrual period (LMP), not from conception. Week 10 begins on day 64 and ends on day 70 from your LMP.

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Pregnancy week 10 · 1st trimester · Baby size: kumquat 🍊 · 3.1cm · 4 g · Sources: ACOG, WHO fetal growth data