0 h 43 min, 17 déc. 2002 ans - week 4 of pregnacy.
Description:
At 4th week you can go get the baby checked on, you'll see a ball, it is call a baby cocoon or a gestational sac.Some cells splits and will become part of the placenta, some will split and form a amniotic sac.
Other cells are destined to form everything such as eyelashes, skin, muscles, etc
Ajouté au bande de temps:
Date:
0 h 43 min, 17 déc. 2002 ans
Maintenaint
~ Il y a 22 ans