Fertility has been trending down over the past few years and it may be a long time before the trend continues, according to a new study.

Fertility rates are trending lower in the U.S. and Europe but the trend is accelerating, with some countries even dropping below the national average.

Fertility is trending lower, according a new report.

AP Photo/Kelsey SnellIn the U, fertility is declining in many parts of the country.

In the Northeast, fertility rates fell to their lowest level since the mid-1990s in 2015.

The U.K., meanwhile, is slowly catching up to the rest of Europe, which is already on pace to have the lowest fertility rate in Europe in the 21st century.

The report says that many factors contribute to fertility declines, including population aging, poor child care, and increasing social isolation.

It also cites the fact that the United States has seen the largest drop in births since the 1930s, and the most dramatic drop in the past decade.

In addition to the U and European countries, fertility in Asia is declining too.

Japan has fallen to its lowest fertility level since 1950 and India has fallen below the fertility rate of its Asian neighbors, but they are not alone.

In South Korea, fertility has dropped to its low point since 1998.

In South Korea alone, more than 50 percent of young women are not married, and an estimated 15 million people are not on the birth certificate.

In China, there are nearly a million fewer people under age 15 and fertility rates are dropping even further.