The Catholic Church continues to teach that the use of Artificial Birth Control is wrong. The teaching was most clearly re-affirmed in the 1968 encyclical Humanae Vitae And that was before the abortifacient characteristic of some contraceptives was known.
In related news I know a GP who will not prescribe Viagra for unmarried men, if what they want it for is to enable sexual intercourse.
It seems to me the major practical consequence of this is that if you are going to engage in sexual intercourse with the intention that it be sterile, line up your docs ahead of time. In the long history of the world it has been only a short time that this was not considered a bad thing. Why physicians and pharmacists should be compelled to become accessories to acts they consider wrong is not clear to me.