Although contreceptives are are good in the sense of reducing abortions, they shouldn't be needed for the most part if only sex occurred after marriage. When the two married would be bonded so closely that a child would probably be great.
Um, I need them in my marriage.
What, you think being married suddenly means that two people have the financial wherewithal to support children - and without BC, we're talking a
lot of children - when they didn't have it before?
I know it sounds outrageous, but it is possible to not want to have kids, or to not want them until later. Abstinence just isn't an option, nor should it have to be for married people. (Or unmarried people, for that matter. Abstinence just doesn't work at preventing pregnancy.)