2 h 46 min, 4 janv. 2002 ans - Sleep cycles (Week 24)
Description:
At this point the fetus will start sleep and wake cycles. The air sucks in the lungs starts to form. This is the end of the second trimester.Ajouté au bande de temps:
Date:
2 h 46 min, 4 janv. 2002 ans
Maintenaint
~ Il y a 23 ans