It’s a question that has been on the minds of many couples as they consider where to start a family.
There are several factors that can affect whether or not a couple can conceive a child, according to a new report from the National Center for Biotechnology Information (NCBI).
The NCBI study, which surveyed more than 2,000 people, found that the fertility rate in couples who have been married for a long time is low, while the fertility of people who have never been married is high.
In fact, a couple’s chances of conceiving a child in the next five years are less than 1% if they’ve been married five years or longer, the NCBI report states.
But couples with children under the age of 5 are more likely to have fertility problems, which the researchers say may lead to problems later in life, such as poor maternal health.
The research, based on data from the U.S. Census Bureau’s 2010 American Community Survey, found married couples who are younger than 45 have a 4.3% chance of conceving a child.
Couples who are over the age 65 have a 17.5% chance, while those under age 35 have a 1.5%.
The study also found that married couples with no children have a 14.5 percentage point higher chance of having a child than couples with kids.
The chances are even higher for those with two kids or more, with a 1 in 7 chance.
“The fact that there are so many reasons why couples have trouble conceiving is not surprising,” said Nancy Jaffe, an associate professor of family medicine at Johns Hopkins University School of Medicine, in a statement.
Many couples have had children with no help, including financial problems, illness or trauma, the researchers said.
And, although there are many ways to prevent infertility, the key is having the right genes and behaviors, Jaffe said.