Man, that's tough!
Vivster says so many great things here. He's right that you shouldn't blame yourself for anything and be proud of the person that you are. And if it happens that you do not start a family, then so be it, that's fine. You don't need to feel bad about it.
However, in your life you are the Player 1 and if you desire kids and a wife but that desire never fulfills then I can definitely see why this is so frustrating for you. After all, the urge to reproduce is just in our DNA and it's not very easy to fight it.
My situation is totally different, but still a tiny bit relatable. I am in a relationship for 8 years now and I want to go the next step and have a bunch of kids - she doesn't. I'm stuck now. She is the love of my life but I can't force her to have kids. Meanwhile my three brothers are all long since married and have kids and I am jealous.
Really tough. I wish you all the best on this. But just like vivster said, life can be beautiful nontheless and you don't need to apologize to anyone for who you are. If it happens, it happens. If not, then not. Both is fine.
Gameplay > Graphics
Substance > Style
Art Direction > Realism