I am extremely pissed at him too.
What would I have given to be 18 ?? and have what he is getting ready to have. Of course having great parents to help is a plus. A Dad to get into this stuff with you is the best thing in the world for a young guy. Something I wasn't lucky enough to have. There was a man who was suppossed to be the one who got my mother pregnant with me, but this isn't the same as being a Dad.
Eric,
it sounds like you have some fantastic parents. I only hope, and I do believe, you are close to being as good of a son to them. You have the kind of relationship going most of us only dream of. As least I dreamed about it when I was young.
Good luck on everything. Take your time and do it right, and do it once. Don't rush anything and make some stupid mistake.