The Unborn:
A Timeline
Our lives all began, of course, long before our births. Not open to dispute is the scientific fact that the life of every human being begins at the moment of fertilization. Learn more about the amazing development of children in the womb and important milestones in their growth.
*Times are Estimates
Conception
-
Embryo attaches to wall of uterus
-
Placenta begins to form
Week 2
-
Blood vessels emerge simultaneously in umbilical vesicle, embryo proper, amnion, and connecting stalk
-
Paired tubular heart
-
Three main divisions of brain
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Week 10
Week 11
Month 3
Month 4
Month 5
Month 6
Month 7
Month 8
Month 9
Birth
*Times are Estimates
Conception
-
Embryo attaches to wall of uterus
-
Placenta begins to form
Week 2
-
Blood vessels emerge simultaneously in umbilical vesicle, embryo proper, amnion, and connecting stalk
-
Paired tubular heart
-
Three main divisions of brain
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Week 10
Week 11
Month 3
Month 4
Month 5
Month 6
Month 7
Month 8
Month 9
Birth
Conception
-
Embryo attaches to wall of uterus
-
Placenta begins to form
Week 2
-
Blood vessels emerge simultaneously in umbilical vesicle, embryo proper, amnion, and connecting stalk
-
Paired tubular heart
-
Three main divisions of brain
Week 3
Week 5
Week 6
Week 7
Week 8
Week 9
Week 10
-
The face now makes complex expressions
-
Intestines absorb water & glucose
Week 11
Month 3
Month 4
Month 5
Month 6
Month 7
Month 8
Month 9
Birth
Understanding the Unborn
*Times are Estimates
Conception
-
Embryo attaches to wall of uterus
-
Placenta begins to form
-
Blood vessels emerge simultaneously in umbilical vesicle, embryo proper, amnion, and connecting stalk
-
Paired tubular heart
-
Three main divisions of brain
-
The face now makes complex expressions
-
Intestines absorb water & glucose
Month 3
Month 6
Month 7
Month 8
Month 9
