And wasn't there a story a while back about a girl who gave birth to a baby in the bathroom at her prom leaving the baby to die while she went on dancing?
Yes, Melissa Drexler, the infamous "Prom Mom." There were at least a couple of similar cases where the child was not killed, either the mother sought help or left the child alive on the floor.
There was a case near me, in Poplar Grove, IL a few years back where the girl delivered in her bedroom in the wee hours of the morning and left the baby on the neighbor's doorstep, but didn't knock, and the baby died of hypothermia. She claimed she thought the baby's cries would wake her neighbors. I seem to remember she issued a statement later telling girls they should be talking to their parents if they get pregnant, or better yet, long before that, so they could avoid being in a spot like hers, where she had the opportunity to screw up so badly.