Week 24 Size: Cantaloupe
About the size of a small cantaloupe.
Relative Visual Scale
Solid circle represents your baby's size. Dotted circle shows the full-term week 40 size threshold.
Baby's Development
The baby reaches viability, meaning they have a chance of survival outside the womb if born early, with intensive medical care. The inner ear is fully developed, establishing the baby's sense of balance.
Weekly Milestones
- ✦ Fetal Viability
- ✦ Balance System Developed
Your Body & Symptoms
You will soon be tested for gestational diabetes (glucose screening test, usually between weeks 24 and 28). You might notice your skin changes, like dark spots or lines, becoming more pronounced.
Common Symptoms this Week
Doctor & Care Recommendations
- ✓ Schedule your gestational diabetes screening test.
- ✓ Ensure you are getting enough magnesium and calcium to prevent leg cramps.
- ✓ Keep moving to support circulation.
PregWeeks
CHECKLISTUltimate Hospital Bag & Birth Plan
Print-Ready PDFThe Ultimate Hospital Bag Checklist & Birth Plan PDF
Prepare for labor with confidence. Our doctor-reviewed checklists ensure you don't forget any newborn or partner essentials in the hospital delivery room.
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Weekly Health Guides & Resources
Second Trimester Guide
Read comprehensive clinical milestones, screening checklists, and developmental guidelines for this phase.
Track & Relieve Symptoms
Learn why symptoms occur, home remedies, and clinical indicators for this week:
Food Safety Checklists
Verify safety statuses, listeria and mercury risks, and safe alternatives for:
Frequently Asked Questions: Week 24
Evidence-Based Clinical Sources for Week 24
PregWeeks is dedicated to medical transparency. Every milestone, symptom tip, and fetal development guideline for Week 24 is sourced directly from clinical guidelines published by leading obstetric authorities. Read more about our editorial methodology on our Medical Sources page.
Prenatal Diagnostic Testing for Genetic Disorders (Practice Bulletin No. 162)
ACOGClinical recommendations for mid-pregnancy screening options, including the anatomy ultrasound scan commonly scheduled between weeks 18 and 22.
View Clinical Guideline ↗Gestational Diabetes Mellitus (Practice Bulletin No. 190)
ACOGPractice standards for screening and diagnosing gestational diabetes mellitus (GDM), typically scheduled between weeks 24 and 28.
View Clinical Guideline ↗Implementing a Gestational Diabetes Screening Protocol (Committee Opinion No. 798)
ACOGStandardized protocols for glucose screening tests to detect gestational diabetes and optimize maternal-fetal metabolic health.
View Clinical Guideline ↗Get weekly pregnancy updates
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