Steve85 - State laws. This state won't grant a divorce while a parent is pregnant here because they have a presumption of paternity, even though I can give them the date of the last time we did stuff and prove that if she is, it's not my child.
Tryhard - I will always protect my S. We don't really do sports, but we both have guitars. I have no plans to raise someone else's child. So, if it turns out that she is pregnant...well, that's going to be an interesting bridge to nuke when we get there.