Catholics believe that any conception whether by natural or unnatural means should only take place within the loving sexual relationship of a husband and wife. They would only want fertility help to be given to married couples.
Catholics firmly believe that just because science makes something possible it doesn't mean that it is right.
Catholics believe that life begins at conception. When an egg and sperm meet, a life is created that is independent of the mother and father. Any techniques used to aid infertility must respect this fact.
For this reason, Catholics cannot allow for any fertility treatment where spare embryos are created. Embryos, Catholics believe, are not disposable commodities.
Catholics believe that Artificial Insemination and IVF are acceptable if there are no spare embryos created and no donor used. Pope Pius XII described a donor being used as 'mechanical adultery'. Donating sperm to create a child, yet having no responsibility for that child isolates the sacred act of creating life from the marriage union and this is a violation of the marriage union.
If no donor is used, no spare embryos created and the means of assisting the infertile couple to have children does not replace sexual intercourse within a marriage, then fertility treatment is acceptable.
Christian arguments for IVF and AI It brings happiness to people who otherwise would not be able to have children. If life comes from God, anything that creates new life must be good. It can create loving families. God told Adam and Eve to “be fruitful and increased in number”. God wants us to have children. AGAPE: most loving action is to offer medical help and to use these God-given gifts of healing. Golden Rule – “Do to others as you would have them do to you.” If you were desperate for a child, wouldn’t you want someone to help you?