Week 18 of pregnancy — 2nd trimester. Baby is the size of a bell pepper 🫑, approximately 14.3cm long and weighing 190g. Quickening likely (first movements felt). 20-week scan approaching. 45% of the 40-week journey complete, 22 weeks remaining.
PREGNANCY WEEK 18 — 2nd TRIMESTER
🫑
bell pepper
baby is about the size of a bell pepper
WEEK
18
of 40
LENGTH
14.3cm
crown to rump
WEIGHT
190 g
approximate
22 weeks remaining · Quickening likely (first movements felt). 20-week scan approaching.
WEEK 18 — BABY'S DEVELOPMENT
2ND TRIMESTER · Weeks 13–26
Quickening likely (first movements felt). 20-week scan approaching.
HOW YOU MAY FEEL
First movements felt (quickening) — like flutters or bubbles. Anatomy scan approaching.
WEEK 18 KEY FACTS
Gestational age
Week 18
Trimester
2nd (T2)
Baby length
14.3cm
Baby weight
190 g
Progress
45% complete
Weeks left
22 weeks
What happens at week 18 of pregnancy?
At week 18 of pregnancy (2nd trimester):\n\nBaby development: Quickening likely (first movements felt). 20-week scan approaching.\n\nBaby size: bell pepper 🫑\nLength: approximately 14.3cm (crown to rump)\nWeight: approximately 190g\n\nPregnancy progress: 45% complete (22 weeks remaining)\n\nGestational age is counted from the first day of your last menstrual period (LMP), not from conception. Week 18 begins on day 120 and ends on day 126 from your LMP.
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Pregnancy week 18 · 2nd trimester · Baby size: bell pepper 🫑 · 14.3cm · 190 g · Sources: ACOG, WHO fetal growth data