Part 4: Answering Arguments for Contraception
8. “What about people who use contraception for health reasons?”
Answer: They are permitted to do that under the principle of the double-effect:
“. . . in cases where a contemplated action has both good effects and bad effects, the action is permissible only if it is not wrong in itself and if it does not require that one directly intend the evil result.”
(Source: David Solomon - The Encyclopedia of Ethics)