Skip Navigation

The Biology of Prenatal Development DVD
Little One Pregnancy Place
Pregnancy Home Log In
Guest Book Create Your Own
All ages referenced from date of fertilization, not last menstrual period.

Mark and Janine's Pregnancy Calendar

Guest Book Journal Display Options: No messages have been posted yet.

Baby's heartbeat counter: 53,988,493
Change narrator
from doctor to baby

Baby boy Jericho Thaine Merrick Gratiuto was born
at 9:45 am on March 21, 2008.


Length: 52 cm  


February 02, 2010 – Fertilization (conception) occurs.  I am 2 weeks pregnant (since LMP). 0.1 mm
Play movieCell Division
   — Development begins with a single-cell embryo at conception!!! (Age: 0-1 day old)
   — One cell becomes two. (30 to 36 hours old)
   — With 12 to 16 cells, the embryo is shaped like a tiny bunch of grapes. (3 days old)
   — The site of the future back and chest can be seen. (4 days old)
   — The embryo begins to implant in the womb. (6 days)
[ View Images ]   [ Play Movies ]
Journal