http://www.vox.com/2014/7/7/5877505/colorado-contraceptives-teen-pregnancy-birth-control Very interesting social experiment. How do Catholics feel about the tradeoff? I'm not Catholic so I don't know if using birth control is an equivalent sin to having an abortion.
Well, I don't have time to look for data, but I know a few women who are fervently anti-abortion (they travel to rallies and demonstrations as far away as Washington DC with signs and rosaries) who view birth control as part of the solution to the problem. And I know a couple others who view birth control as almost the equivalent of (yet one of them has two kids two years apart... not that I'm judging).