This is a serious topic which each couple needs to make prior to the marriage. Now that the marriage is already set, the couple needs to decide which is more important, spouse or children? If the woman thought she would have children and the man says no after the fact, then she could sue for an annulment because she entered the marriage under false pretenses. If he said no before the marriage and she went ahead with the marriage anyway thinking she could change his mind, then she may be stuck with her results and then have to choose one or the other. From a religious perspective, God's command to multiply and replenish has never been rescinded. In other words, one of the key purposes for marriage, if not the key purpose, is to have children and to correctly raise up the next generation. In which case, she may want to divorce and choose a new husband.
my married opinion