I was just surfing the internet tonight when I found some amazing videos of unborn children from Discovery Health Channel. These are all animation, but this is very cool stuff.
Conception: when two cells become one
At Four Weeks
At Five Weeks
At Six Weeks: The LifeLine Between Mother and Child:
At Eight Weeks:
Sex Organs Form
(This one made me laugh. It's a little more graphic than what I'm used to.)
At 26 weeks
( I disagree with the narrator that the core of the fetus begins to develop, but it's still neat video).