In 2006, MSNBC reported the most recent statistics I could find report that 4 out of 10 babies are born out of wedlock in the United States. This 40 % rate of out of wedlock birth is an all time high. Interestingly, while that stat has risen, the number of teen pregnancies is falling and, in 2005, sat at "an all time low". The key to the rising unwed birth rate seems to have shifted from teenage girls to women in their 20's. This rise in births for this demographic is being attributed to an increase in the average when people get married, and the greater level of societal acceptance for women who choose to have a baby without being married.
Of note: The rise in out of wedlock pregnancies was consistent across race.
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