So with several posts you finally manage to find something that ties SOME pre-term births with young mothers.  You have thus decided that the many pre-term births across the entire country are because conservatives turned down the chance to have taxpayers pay for contraception for teenagers in one state.

http://public.econ.duke.edu/~psarcidi/teensex.pdf
http://sti.bmj.com/content/78/5/352.full
http://www.jillstanek.com/2011/01/study-spain-contraception-use-up-abortions-double-researchers-cant-figure-out-why/

Many long term studies show that free contraception is not the panacea for unwanted pregnancies you seem to think it is.