Your baby will be about 8-11 mm CR by the end of the week. The baby's hind brain is clearly visible. This week the baby's gonads will become either testes or ovaries. And spontaneous movement begins! There are a lot of things that we do know about life before birth.
Bones and joints this week have many things going on. Elbows appear and the process of ossification (hardening of the bones) begins. Toe rays become present, almost ready for you to count!
Photo © A.D.A.M. in Fetal Development