Maybe some lessons from behavioral economics apply. Instead of just offering free birth control, birth control should be provided by default and one would have to opt out instead.
To make this more Chicago related, here's a link to Rahm's podcast with Economics Nobel Prize winner Richard Thaler, where the impact of behavioral economics on retirement plans is discussed (EDIT: actually, maybe not, maybe I mixed it up with another one...).
https://soundcloud.com/chicagosmayor...al-nobel-prize