Check out this 90 second video to help you get a real visual of what’s happening inside mama’s body while she’s birthing.  Watch it over and over until you can see it happening in your own mind easily.

https://www.youtube.com/watch?v=Xath6kOf0NE

This clip is similar but shows how birth happens when the woman is upright

https://www.facebook.com/video.php?v=744147002368203&fref=nf