Skip Navigation

Little One Pregnancy Calendar & Journal
Log in

Baby’s Pregnancy Calendar

On my way: One cell becomes two

36 hours old / 2 weeks pregnant (since LMP)
From The Biology of Prenatal Development.Buy Now

Note:

I started with one cell, now I have two.

Note:

After the first cell division, subsequent cell divisions occur more frequently.

Label Key:

  • 1. outline of one cell
  • 2. membrane of second cell

Hide Labels | Larger | Play Movie #5
On my way: One cell becomes two
On my way: One cell becomes two
The Human Morula
The Human Morula
Blastocyst with Inner Cell Mass
Blastocyst with Inner Cell Mass
Embryo at About 11 Days
Embryo at About 11 Days
Germ Layers of the Embryo
Germ Layers of the Embryo
Tube-Shaped Heart
Tube-Shaped Heart
Previous Set Previous Picture Next Set Next Picture