I hate to assume things but going by your profile picture you're a guy right? Hope so, I'd hate to be wrong :| Anyway, you don't think if you had a girlfriend, or even a wife, and she was carrying the child you helped to create, maybe even a child you were looking forward to being a dad to, you wouldn't care if she decided to have an abortion?
If she wasn’t ready for a child why would I want to force her to go through that? It really comes down to who I love more: My wife/girlfriend or something that doesn’t exist yet.
When I get into a relationship the only children to be had will be when we are BOTH ready, willing, and able. And let me tell you, someone I love will win out something might love every single time if we’re talking 1 to 1 ratios.