I assume someone has noted that a substantial percentage of teens getting pregnant not married, etc. want to do so. They assume that the stack is wired against them, and they don't have a future, so why not feel important, and have someone to love, by having a baby? This issue is not going to be "solved" by having more health classes, or birth control available. It's far deeper and more intractable than that.
I knew quite a few pregnant girls in high school and this was not my observation at all. There is an enormous stigma against being pregnant in high school, and it's not like teenagers are in the business of seeking out responsibility. Instead, there was a great deal of recklessness and excitement about sex. Suggesting that girls are trying to get pregnant is giving them way more foresight and planning than was common.
