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Second Trimester (Weeks 14 - 27) Week 21 of 40
Last reviewed by medical team: June 2026 Evidence-Based Care Check
Fetal Size Comparison

Week 21 Size: Carrot

About the length of a long carrot.

Length 26.7 cm 10.5 inches
Weight 360 g 12.7 oz

Relative Visual Scale

Solid circle represents your baby's size. Dotted circle shows the full-term week 40 size threshold.

Inside The Womb

Baby's Development

The baby's movements are transitioning from reflex-like flutters to deliberate kicks and nudges. The baby's taste buds are developed, and they can taste the flavors of the foods you eat through the amniotic fluid.

Weekly Milestones

  • Taste Buds Functioning
  • Deliberate Movement
Maternal Health

Your Body & Symptoms

You might feel generally comfortable, but stretch marks may start appearing. Varicose veins and spider veins can show up due to pressure on pelvic veins.

Common Symptoms this Week

Kicks and nudges Stretch marks Varicose veins Increased appetite

Doctor & Care Recommendations

  • Wear support hose if you develop varicose veins.
  • Eat a wide variety of healthy foods to introduce different flavors to your baby.
  • Avoid standing for long periods without moving.

Weekly Health Guides & Resources

Trimester Guide

Second Trimester Guide

Read comprehensive clinical milestones, screening checklists, and developmental guidelines for this phase.

Explore Trimester →
Common Symptoms

Track & Relieve Symptoms

Learn why symptoms occur, home remedies, and clinical indicators for this week:

Pregnancy Nutrition

Food Safety Checklists

Verify safety statuses, listeria and mercury risks, and safe alternatives for:

Full Nutrition Guide →

Frequently Asked Questions: Week 21

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