article_snippet.sent: Scroll down for video .
article_snippet.sent: This narrows a mother
article_snippet.sent: The videos were also an emotional milestone in the process of becoming a parent, Professor Fishel said.
article_snippet.sent: The video given to parents is a sped-up version of the process which occurs before the embryo develops.
article_snippet.sent: The video given to parents once a mother had fallen pregnant.