A friend did this: She got a piece of paper and folded it in half and anytime she thought of a reason to have children, she wrote it down on one side. And anytime she thought of a reason not to have children, she would write it on the other. When she had her doubts about not having children, she would look at the list, and it would remind her that the decision she made not to have children was right for her. Any advice? Will I regret not having kids when I get older?