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WEEKS 14–27

Second Trimester Pregnancy Guide

Often called the “golden trimester,” weeks 14–27 bring more energy, a visible baby bump, first baby movements, and the exciting anatomy scan. This is when many parents begin to truly feel the pregnancy.

Ashok Kumar Poudel
Written by
Ashok Kumar Poudel
Health & Wellness Writer
Dr. Bina Basnet
Medically reviewed by
MBBS, MD — Gynecologist & Obstetrician
Last reviewed:
Feb 2026
📅
Duration
Weeks 14–27
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Baby grows to
~36 cm / 875g
🔬
Key scan
Anatomy scan ~20w
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Milestone
Viability at 24w

What Happens in the Second Trimester?

The second trimester spans weeks 14–27 and is often the most comfortable period of pregnancy. The intense nausea and fatigue of the first trimester typically subside, replaced by renewed energy and the joy of feeling your baby move for the first time. Your belly becomes visibly pregnant, and the baby transitions from a small fetus to a viable preemie capable of survival with medical support by week 24.

The anatomy scan at 18–22 weeks is a major milestone — your provider will examine all the baby’s organs, measure growth, check the placenta, and can tell you the baby’s sex if you choose to find out. The glucose tolerance test at 24–28 weeks screens for gestational diabetes, which affects about 6–9% of pregnancies.

Week by Week: Second Trimester

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Week 14
Size: Lemon
First movements possible
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Week 15
Size: Apple
Baby can sense light
🥑
Week 16
Size: Avocado
Eyes can move
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Week 17
Size: Pear
Fat deposits forming
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Week 18
Size: Bell pepper
Anatomy scan window
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Week 19
Size: Mango
Vernix coating skin
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Week 20
Size: Banana
Halfway! Anatomy scan
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Week 21
Size: Pomegranate
Eyebrows & eyelashes
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Week 22
Size: Papaya
Grip reflex present
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Week 23
Size: Grapefruit
Hearing developing
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Week 24
Size: Corn
Viability milestone
🥦
Week 25
Size: Cauliflower
Nostrils opening
🥬
Week 26
Size: Lettuce
Eyes open for first time
🥬
Week 27
Size: Head of cabbage
REM sleep begins

Key Second Trimester Tasks

📷
Book Anatomy Scan

Schedule your 20-week anatomy scan at 18–22 weeks. This is your most comprehensive ultrasound.

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Glucose Screening

1-hour glucose challenge test at 24–28 weeks screens for gestational diabetes.

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Start Childbirth Classes

Register for childbirth education classes early — popular ones fill up fast.

💼
Plan Maternity Leave

Review your employer's policies and start planning your leave schedule.

Frequently Asked Questions

Common questions answered by our medical team

First-time mothers (primiparas) typically feel movement (called 'quickening') between weeks 18–22. Women who have been pregnant before may feel movement as early as weeks 14–16. Early movements feel like flutters or bubbles. By weeks 24–26, movements become more distinct kicks and rolls.
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