Illustrated talk giving position of baby in the womb (12)
I believe the answer is:
presentation
This clue is a triple definition!
'illustrated talk' is the first definition.
(I've seen this before)
'giving' is the second definition.
(thesaurus)
'position of baby in the womb' is the third definition.
(which parts leads out of the birth canal)
(Other definitions for presentation that I've seen before include "when gifts are handed out?" , "Formal introduction" , "Display" , "Illustrated formal talk" , "Formal act of giving" .)