Are parents allowed to select the sex of their children? My husband and I have two girls and would like to try for a boy to complete our family.

Even if one had a way to select for sex that did not involve aborting children of the "wrong" sex or otherwise violating the integrity of the marital act (e.g., by using in vitro fertilization), it can be argued that to do so may open a couple to the temptation to treat children in a utilitarian fashion rather than treating them as gifts from God possessing inherent human dignity. The Church expects parents to remain open to life and to lovingly accept the children God entrusts to them, regardless of their sex. Donum Vitae states: "The child is not an object to which one has a right, nor can he be considered as an object of ownership: rather, a child is a gift, ‘the supreme gift’ and the most gratuitous gift of marriage, and is a living testimony of the mutual giving of his parents" (DV 8).