Why does the Catholic Church oppose the use of contraception?
Oh, and by the way, BIRTH CONTROL is not opposed by the Church because NFP (Natural Family Planning) is birth control. Birth control is regulating the amount of births. CONTRACEPTION on the other hand, is preventing conception all together and not being open to children period.
You can also read this on my blog at http://purebrideofchrist.blogspot.com/2013/03/birth-control-no-birth-and-no-control.html