Honesty in teaching children about sex and birth control would be a good start.
Let us face it sex feels good.Advertising,literature,movies,television,musi c,etc all make references to sex.Sex is a normal part of life.
Abstinence is an unrealistic alternative,at least for me and most people I know.When I was a teenager I spent a lot of time trying to get "laid".I did not have much success.The few times I had a chance I had to hsang around the drugstore and buy things until the "right" moment when I could ask to purchase some condoms ,which were safely locked up somewhere behind the counter.
My point is knowledge and access to birth control can prevent pregnancy and therefore abortion.

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I respect your right to have your own opinion,but I do not necessarily respect your opinion.