Teenage pregnancy is defined as a teenage or underage girl, usually within the ages of 13-17, becoming pregnant. 13 million children are born to women under age 20 worldwide, more than 90% in developing countries. sex by age 20 is the norm across the world, and countries with low levels of adolescent pregnancy accept sexual relationships among teenagers and provide comprehensive and balanced information about sexuality.Studies have indicated that adolescent girls are often in abusive relationships at the time of their conceiving. They have also reported that knowledge of their pregnancy has often intensified violent and controlling behaviours on part of their boyfriends. Women under age 18 are twice as likely to be beaten by their child's father than women over age 18.
http://en.wikipedia.org/wiki/Teenage_pregnancy
