3 h 28 min, 25 nov 2002 ans - Second Trimester Begins
Description:
Week 13 marks the beginning of the second trimester. When the second trimester begins the placenta is already fully developed. During this trimester the placenta grows to suit the growing fetus.Ajouté au bande de temps:
Date:
3 h 28 min, 25 nov 2002 ans
Maintenaint
~ Il y a 22 ans