Pregnancy Week 20 vs Week 21

Complete comparison of baby development, mom's symptoms, and changes between these weeks

📊

Time Difference

1 week apart

🔄

Trimester

Both in 2nd trimester

Baby Size Comparison

Growth Progress

Week 20Banana

Week 21Carrot

Your baby is approximately 51% through pregnancy

Week 20

📏

Length

6.5 inches

⚖️

Weight

10.2 ounces

🍎

Size Comparison

Banana

Week 21

📏

Length

10.5 inches

⚖️

Weight

12.7 ounces

🍎

Size Comparison

Carrot

What Changes Between Week 20 and 21?

👶New Baby Developments

✓Baby can hear your voice clearly and may recognize it after birth
✓Eyebrows and eyelids are fully formed and visible
✓Fingers and toes are completely formed with distinct nails
✓Bone marrow has taken over producing red blood cells from the liver and spleen
✓Baby drinks several ounces of amniotic fluid daily for digestive practice

🤰New or Changing Symptoms

✓Significantly increased appetite as baby grows rapidly
✓Possible varicose veins in legs from increased blood volume and uterine pressure
✓Stretch marks may appear on belly, breasts, hips, or thighs as skin stretches
✓Braxton Hicks contractions (practice contractions) may start - they feel like tightening
✓Increased vaginal discharge

📈Key Changes Summary

Baby Growth: Your baby continues to grow rapidly, with organs developing and maturing each day.

Your Body: Your body adapts to support your growing baby with various physical and hormonal changes.

Baby Development Milestones

Week 20 Development

•Baby is swallowing more amniotic fluid (up to several ounces per day)
•Hair is growing on the scalp, and eyebrows and eyelashes are visible
•Lanugo (fine, downy hair) covers entire body to regulate temperature
•Baby can hear sounds clearly and may respond by moving or changing heart rate
•Regular sleep and wake cycles are developing with distinct active and rest periods
•Meconium (first bowel movement) is accumulating in intestines

Week 21 Development

•Baby can hear your voice clearly and may recognize it after birth
•Eyebrows and eyelids are fully formed and visible
•Fingers and toes are completely formed with distinct nails
•Bone marrow has taken over producing red blood cells from the liver and spleen
•Baby drinks several ounces of amniotic fluid daily for digestive practice
•Rapid brain development continues with billions of neurons forming

Common Symptoms

Week 20 Symptoms

•Halfway through pregnancy - a major milestone to celebrate!
•Visible baby movements that may be seen moving across your belly
•Increased white or clear vaginal discharge (leukorrhea)
•Possible varicose veins in legs due to increased blood volume and pressure
•Shortness of breath as uterus pushes up on diaphragm
•Increased sweating and body temperature

Week 21 Symptoms

•Significantly increased appetite as baby grows rapidly
•Possible varicose veins in legs from increased blood volume and uterine pressure
•Stretch marks may appear on belly, breasts, hips, or thighs as skin stretches
•Braxton Hicks contractions (practice contractions) may start - they feel like tightening
•Increased vaginal discharge
•Possible leg cramps at night

Nutrition Tips

Week 20 Nutrition

•Eat iron-rich foods at every meal combined with vitamin C
•Include vitamin C-rich foods (85mg daily) like oranges, strawberries, kiwi, and broccoli for iron absorption
•Stay hydrated with 10-12 glasses of water to support increased blood volume
•Eat calcium-rich foods (1000mg daily) at every meal
•Include foods rich in vitamin K like leafy greens for blood clotting
•Eat magnesium-rich foods to support muscle and nerve function

Week 21 Nutrition

•Eat 25-35 grams of fiber daily from fruits, vegetables, whole grains, and legumes to prevent constipation
•Include 75-100g of lean proteins daily from varied sources
•Stay hydrated with 10-12 glasses of water to support blood volume
•Eat foods rich in vitamin E like almonds, sunflower seeds, and avocados for skin elasticity
•Include healthy fats for baby's brain development
•Eat small, frequent meals to accommodate growing uterus