Marriage is not that important, it's just a piece of paper.
If you're living with a skirt for more than 3 months, it's as close to a marriage as it can get.
What you should be preoccupied with is having kids as early as you can.
As you get older, your patience lowers dramatically.
When you're younger, your parents are young too, so they can help when you're at work.
This is a bigger deal than you might think, and getting help from your parents will have a huge huge impact.
Another piece of advice is don't let your wife get comfortable.
No matter how much money you make, let her work, regardless of her paycheck. It will help her mental health a great deal, and your relationship will be better around the house.