For the longest time after having my second child, I longed for a third. But, my husband was happy with two, and there was nothing I could do or say to convince him otherwise. After a serious discussion about the reasons why he didn't think it would be a good idea to expand our family, I realized that he was simply being practical. We were in a good place, and having another baby would likely turn our world upside-down.
You may be struggling with the same decision. There are signs your marriage will survive having more kids, and those signs should be weighed along with the chance that expanding your family could put an undue strain on your relationship. Consider the reasons why you want more children. Are your friends pregnant and you have caught a case of baby fever? Are you overwhelmed at the thought that your existing children are growing up? Do you only have boys and really want to try for a girl (or vice versa?) Be honest with your spouse and with yourself, and it will make the decision so much easier.
Here are some ways you will be able to tell if your marriage is strong enough to survive having more kids.