Marriage is intended to be a marathon rather than a sprint. That is the way God made it. God also gave a husband and wife the privilege to raise children within the context of their home. And while raising children has a ton of challenges, it also provides some built-in safeguards which can actually help to save your marriage when your relationship encounters huge hurdles.
It is perhaps tougher than ever to stay married these days. There are a number of reasons for this development, but that doesn't mean your marriage has to end in divorce. Many couples have been able to "go the distance," and so there is hope for your marriage as well.
Some couples are not able to have children, but for those who do, let me offer you some encouragement regarding the way in which your kids could save your marriage.