ATLANTA, Feb. 14 (UPI) -- U.S. emergency contraception, the morning after pill, rose from 4 percent in 2002 to 11 percent from 2006-10 among women sexually active women, researchers say.
Kimberly Daniels, Jo Jones and Joyce Abma -- researchers at the National Center for Health Statistics, part of the Centers for Disease Control and Prevention -- found 59 percent of the women who had ever used emergency contraception had done so once, while 24 percent said they had used it twice.