My parents were never married. I respect them both for that decision. They love and respect eachother a lot and I had a wonderful childhood. To this day they visit eachother and go on vacations together, they're the best of friends, but they knew that their relationship just wasn't marriage-material.?
So yeah, there are no rules. You have to do what's right for you in your own situation.
glad that everything went so well..... Doesn't happen to often... many people rush into marriage because of a child then live miserably the rest of their lives and fight in front of their children which is very unhealthy