Week 20 of 40 Second Trimester

Week 20: The Halfway Point

Congratulations — you've reached the halfway mark of your pregnancy! Your baby is swallowing more amniotic fluid, and hair is starting to grow on the scalp.

Baby is the size of
Banana
16.4 cm
300 g
50% through your pregnancy
Week 19 All Weeks Week 21
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Baby's Development

You've reached the halfway point of pregnancy. Your baby is swallowing increasing amounts of amniotic fluid, which helps the digestive system practice its eventual function and contributes to the formation of meconium (your baby's first bowel movement, usually passed after birth).

Hair is starting to grow on your baby's scalp, though color and texture at birth can be quite different from what develops later in childhood. Your baby's movements are becoming strong enough that you likely feel them regularly now.

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Changes in Your Body

Halfway through! Your uterus has reached your belly button, and your bump is now unmistakable. Many women feel their best during this window — energy is often good, and the discomforts of late pregnancy haven't set in yet.

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Common Symptoms

At the halfway mark, common experiences include:

  • Strong, regular fetal movement
  • A clearly visible bump
  • Increased appetite
  • Round ligament pain
  • Mild swelling
  • Possible stretch marks
  • Increased vaginal discharge
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Nutrition This Week

As you pass the halfway mark, caloric needs increase modestly (typically by around 300-450 extra calories per day in the second and third trimester, though this varies by individual). Focus on nutrient quality over simply eating more.

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Safe Exercises

This is often considered the most comfortable stretch for exercise during pregnancy. If you've been inconsistent, this is a great time to establish a routine you can maintain through much of the remaining months.

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Medical Checklist

Halfway-point checklist:

  • Reflect on your pregnancy so far and discuss any ongoing concerns at your next visit
  • Start researching pediatricians if you haven't already
  • Consider starting to plan a babymoon or registry if relevant to you
  • Continue all routine prenatal care
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Doctor Visit Guide

Routine visits continue at the standard interval. Your doctor will check fundal height, listen to the heartbeat, check blood pressure, and discuss any symptoms or concerns you've noted.

Frequently Asked Questions

Yes, for a standard 40-week pregnancy, 20 weeks marks the exact midpoint. Some sources calculate slightly differently if using a 38 or 42-week range, but 20 weeks is widely recognized as the halfway milestone.

The hair growing on your baby's scalp now isn't necessarily a preview of their eventual hair color or texture — many babies are born with hair quite different from what develops over the following months and years, influenced by genetics that continue to express themselves after birth.

General guidance suggests roughly 5-7 kg (11-15 lbs) total by 20 weeks for women starting at a typical pre-pregnancy weight, though healthy ranges vary based on your individual starting BMI — your doctor can give you a personalized target.
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