What begins spiritually eventually becomes physical, every non-catholic religion is not fully receiving from God what should be there, especially by schism or heresy.
Choosing not to fully receive from the Christ what he offers to give the person is a form of spiritual contraception, as if the woman replace a barrier between herself and the husband.
Inevitably then what begins spiritually becomes manifest physically so that eventually non-catholic Christians will embrace literal contraception because their religions refuse to accept some of the truths of Jesus Christ