Sensitive subject

I know this is a real stupid thing to ask or talk about. 
I'm just curious what others think about this. Where do you think your babies soul is while they are in your belly? Do you think it stays in heaven until he or she is ready to be born? Do you think it's soul gets sent the moment he or she is created? Do you believe the babies soul comes from heaven once everything is substantially developed? 
Posting this on anon because I'm a little afraid of what will be said, I'm honestly just curious of other peoples views.