Only when procreative and unitive love are present can the sexual union be elevated as God wills it to be. The presence of either end alone marks the sexual union on the level of masturbation. Although this may be difficult to hear, the point must be made. Contraceptive sex reduces marital sexual union to a selfish action that falls- into the same category as premarital sex, adultery, solitary sex, homosexual relations and all other forms of extramarital sex. With this in mind, we can see the inherent danger of contraceptive use.
Physical dangers exist, but the potential for spiritual disaster is far greater.
A couple may disagree with this teaching, but that does not change the outcome of contraceptive use. We can disagree with the law of gravity, but if we walk off a cliff, we will suffer the consequences. Where there is contraceptive use, God is not able to join the two into one. The couple remains separate, growing in selfishness, and thus growing apart. So tragic has been the promotion of contraceptive use, one can conclude that it is perhaps the reason for divorce today.