what i wish all my protesting family and friends knew

498. What are immoral means of birth control?
Every action - for example, direct sterilization or contraception - is intrinsically immoral which (either in anticipation of the conjugal act, in its accomplishment or in the development of its natural consequences) proposes, as an end or as a means, to hinder procreation.

Further reading: CCC 2370-2372