Week 5: Heart Development
Your baby's heart is forming and neural tube development is beginning.
First trimester
Expert guidance
Week 5 guide

Week 5 Overview
First trimester - Your baby's heart is forming and neural tube development is beginning.
What's Happening This Week
Your baby's heart is forming and neural tube development is beginning. Your baby is about the size of a sesame seed and amazing developments are taking place. Heart and neural tube forming
Baby's Development
Heart and neural tube forming
Your baby is about the size of a sesame seed and approximately 3mm long.
What You Might Experience
Common Symptoms
✓Morning sickness begins
✓Fatigue
✓Frequent urination
This Week's Important Topics
•Folic acid importance
•Early pregnancy symptoms
•First doctor visit planning
•Healthy eating
Week 5 Quick Facts
Baby Size: Sesame seed
Length: About 3mm
Trimester: First
Weeks to go: 35 weeks
Important Reminder
Every pregnancy is unique. While this guide provides general information, always consult with your healthcare provider for personalized advice. You're doing amazingly well!