 
<prompt> Percentage of teenagers who have begun childbearing and who are pregnant with their first child by age | Percentage | (Have had a live birth, 15 years, 2) (Are pregnant with first child, 15 years, 3) (Have had a live birth, 16 years, 8) (Are pregnant with first child, 16 years, 5) (Have had a live birth, 17 years, 16) (Are pregnant with first child, 17 years, 7) (Have had a live birth, 18 years, 30) (Are pregnant with first child, 18 years, 7) (Have had a live birth, 19 years, 36) (Are pregnant with first child, 19 years, 6) <response> Rates of teen motherhood increase steadily from age 15 to 19, with especially large increases between the ages of 17 and 18.  