"The pregnancy rate for women in the United States continued to decline in 2010, to 98.7 per 1,000 women aged 15-44, a record low for the 1976-2010 period," wrote researchers Sally Curtin and Joyce Abma of the National Center for Health Statistics and Guttmacher Institute, who authored the study. "This level was 15 percent below the 1990 peak."
The estimated number of pregnancies dropped to 6.155 million in 2010, which the researchers said is the lowest number since 1986. That breaks down to 3.999 million live births, 1.103 million induced abortions, and 1.053 million fetal losses, according to the study.
Other studies have shown, however, that the birthrate began to rise again in 2014, increasing by about 1 percent. Researchers attribute this partly to the fact that pregnancies in women 40 and older rose by a whopping 70 percent in that timeframe.
Teen pregnancies, meanwhile, showed a dramatic decrease, with pregnancy rates for girls 14 and younger falling 67 percent, and teens 15 and older falling by 50 percent.
Federal data, though, show that the U.S. teenage birth rate is still seven times higher than rates in other wealthy countries.