Before you do anything, read this thread:
http://www.airlinepilotforums.com/mi...blindness.html
Truly selfish people do not ask themselves if they're being selfish.
When you got married, you took a step away from self, and made a commitment to someone else. Being a father requires you to be less selfish (if you're going to do it well). Military service (with the possible exception of the Air Force) requires selflessness.
Right now, there is a bit of a poisoned environment in the DoD. This administration is committed to destroying it. Manning levels will be cut drastically, while workload and mission optempo are increasing. Good people will almost certainly be leaving in droves. Still, we will need good (selfless) people to serve and to be the continuity for rebuilding when times get better (we've been through this before).
Good luck. Flying is cool, but there are a lot of other good jobs and skills you can acquire through military service. If you do go in, please remember to look out for yourself and your family. The services are expert at getting more from you than they give, so don't worry too much about them. Don't leave your wife and kid with a medal and a flag.