Plan B One Step is an emergency contraceptive that is available over the counter. If you find your wife has purchased Plan B, can you keep her from taking it? Louisiana law does not include among the obligations that married people have toward each other a duty to have children. It might be argued that aborting a baby of the marriage or using contraception against the other spouse’s will is cruel treatment. However, cruel treatment is only relevant to disputes between spouses in covenant marriages or in disputes about one spouse’s right to permanent alimony. A spouse has no right to force a spouse to conceive.