If you want to simplify it down to that level you can, all I am saying, that life is created by bioligical means, not spritual or religious, you can't 'pray and have a baby' there has to be a physical act to accomplish this, be it natural or otherwise.
Simple expirement, have 2 women, both same age, same fertility. Have one 'pray' to get pregnant, but not perform any action other than 'praying', have the other actually do the deed. Now lets see who gets pregnant first.