Skip Navigation
The Endowment for Human Development
The Endowment for Human Development
Improving lifelong health one pregnancy at a time.
Donate Now Get Free Videos

Movie Theater

The Developmental Period


7 weeks, 4 days

From The Biology of Prenatal Development.Buy Now

Script: The developmental period before birth is increasingly understood as a time of preparation during which the developing human acquires the many structures, and practices the many skills, needed for survival after birth.

All ages referenced to fertilization, not last menstrual period.
See Snapshots   |   Log in to create a playlist
Fingers and Toes
Fingers and Toes
4D Ultrasound
4D Ultrasound
The Developmental Period
The Developmental Period
Ovaries Identifiable
Ovaries Identifiable
The Highly Complex Brain
The Highly Complex Brain
Right- and Left-Handedness
Right- and Left-Handedness
When does health begin? Find out now.
Tell your story. Create your own pregnancy calendar.