I have to side with steveo. Ideally, people should take responsibility. That isn't how the real world works. If welfare, food stamps, and all that government safety net shit didn't exist, I'd be against paying for free birth control. However, we do. So if I had the choice, I'd rather pay for a relatively inexpensive pill as compared to paying for someone to be on government assistance their whole life.
Not to mention, we already have enough frickin' people.