Premarital cohabitation leading to marriage , kids with greater frequency , CDC study finds . From 2006 to 2010 , 48 % of unmarried women aged 15 to 44 slept with someone for first time . ( CNN ) -- Report : Nearly 50 % of women became pregnant within a year of premarital sex . Couples view living together as way of preparing themselves for marriage , psychotherapist finds .
Premarital cohabitation leading to marriage , kids with greater frequency , CDC study finds . From 2006 to 2010 , 48 % of unmarried women aged 15 to 44 slept with someone for first time . Report : Nearly 50 % of women became pregnant within a year of premarital sex . Couples view living together as way of preparing themselves for marriage , psychotherapist finds .