What happens when the government subsidizes the pill for teenage girls? - Barking up the wrong tree: "the subsidy significantly decreased the abortion rate by about 8 percent. Furthermore, long-term access decreased the likelihood of teenage childbearing by about 20 percent. However, there is no significant effect on labor supply, marriage, educational attainment or welfare take-up."
http://www.bakadesuyo.com/what-happens-when-the-government-subsidizes-t