Teen pregnancies are in the spotlight, from Sarah Palin’s unwed daughter Bristol in magazines and on TV with her baby in her arms, to 2007’s Academy Award-winning film “Juno,” and MTV’s new reality show “16 and Pregnant.” Talk about reality: This year in the United States, more than 750,000 teenagers will become pregnant, according to a report in Women’s E-News, while the Center for Disease Control and Prevention showed the teen pregnancy rate increased by three percent in 2006 — the first such U.S. increase in 14 years. The United States has the highest rates of teen pregnancy in the developed world — 14 times higher than Japan, and twice that of Australia and Canada, according to the World Health Organization. Globally, WHO notes that more than 14 million teenage girls have babies each year — most in developing countries. Though it does not attribute its statistics, the Christian advocacy Web site Vision.org notes that teen pregnancy rates in Latin America and Africa are double — and in some cases even quadruple — those of the United States.