Well since you're speaking of contraceptives in terms or religion, than you might just have to include masturbaton as well

I personally believe that they should be used, because lack of use can lead to other problems facilitated by today's society that might jeopordize your religion. There's numerous aspects that you can view this from. Contraceptives during marriage, pre-marital contraceptive use; which is still considered a sin etc. etc.

Quick Fact:
Humans and Dolphins are the only mammals that have sex for purposes other that procreation.