Thanks for the response Rosska

. You make a lot of valid points for sure.
You're very right, many married couples don't have children. The problem is, this particular girl I love, I'm sure she's going to want to have children. And, she should, she'd make such a great mother if I consider what a wonderful person she is.
About the adoption. OK, I'm not totally against the idea. But, I mentioned the blood-line of my family ending with me basically. Now, if I adopt children, my family will ask "but why didn't you have any of your own? You didn't have to adopt, you've killed our blood-line" and they be right of course, because there's nothing wrong with my fertility or whatever, so I should be able to father my own. If I adopt, I'll create a huge problem anyway. It's not a total no though. A while back, a young female friend of mine became pregnant by accident and for a long time I considered taking her under my wing maybe and taking care of her and the child. But, I wasn't financially strong enough, so that fell through and I abandoned the idea. But, if I had the money, I would have provided for her for sure, and the child. I would have provided a home for them and taken care of their needs, but I don't think I would have married her. Maybe that was the ideal opportunity for me to find out how much of a dad I could've been, but I didn't have the means to provide unfortunately.