What types of fertility treatments would not be permitted?

Some types of fertility treatments that would not be permitted include In Vitro Fertilization, (IVF), cloning, use of surrogates, sperm donation. These methods lack either the unitative or the procreative aspects of the marital act, or both. They are not working with the natural way things happen. Taking a pill to prevent conception frustrates the natural process by trying to prevent conception or implantation. It lacks either the unitive or the procreative aspects of the marital act, or both.