Week 20 of pregnancy — 2nd trimester. Baby is the size of a banana 🍌, approximately 16.0cm long and weighing 300g. Halfway point! Anatomy scan this week. Baby swallowing amniotic fluid. 50% of the 40-week journey complete, 20 weeks remaining.
PREGNANCY WEEK 20 — 2nd TRIMESTER
🍌
banana
baby is about the size of a banana
WEEK
20
of 40
LENGTH
16cm
crown to rump
WEIGHT
300 g
approximate
20 weeks remaining · Halfway point! Anatomy scan this week. Baby swallowing amniotic fluid.
WEEK 20 — BABY'S DEVELOPMENT
2ND TRIMESTER · Weeks 13–26
Halfway point! Anatomy scan this week. Baby swallowing amniotic fluid.
HOW YOU MAY FEEL
20-week anatomy scan. Halfway milestone. Gender reveal possible.
WEEK 20 KEY FACTS
Gestational age
Week 20
Trimester
2nd (T2)
Baby length
16cm
Baby weight
300 g
Progress
50% complete
Weeks left
20 weeks
What happens at week 20 of pregnancy?
At week 20 of pregnancy (2nd trimester):\n\nBaby development: Halfway point! Anatomy scan this week. Baby swallowing amniotic fluid.\n\nBaby size: banana 🍌\nLength: approximately 16.0cm (crown to rump)\nWeight: approximately 300g\n\nPregnancy progress: 50% complete (20 weeks remaining)\n\nGestational age is counted from the first day of your last menstrual period (LMP), not from conception. Week 20 begins on day 134 and ends on day 140 from your LMP.
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Pregnancy week 20 · 2nd trimester · Baby size: banana 🍌 · 16.0cm · 300 g · Sources: ACOG, WHO fetal growth data