About 4 in 10 pregnancies in the United States are unplanned. In 2019, 41.6% of U.S. pregnancies were classified as unintended, a slight improvement from 43.3% in 2010. Globally, the numbers are even more striking: roughly 121 million unintended pregnancies occurred each year between 2015 and 2019.
What “Unplanned” Actually Means
Researchers split unintended pregnancies into two categories. A “mistimed” pregnancy is one that was wanted eventually, just not yet. An “unwanted” pregnancy is one that wasn’t desired at all. The distinction matters because these two groups often have very different experiences and outcomes. Younger women are more likely to describe a pregnancy as mistimed, while women over 35 are more likely to call it unwanted.
This also means the 41.6% figure isn’t a monolith of people who never wanted children. A significant portion simply wanted them later.
U.S. Rates by State and Demographics
Unplanned pregnancy rates vary widely across the country. In 2017, the proportion of pregnancies that were mistimed or unwanted ranged from 26% in Utah to 44% in New Jersey, New York, and Maryland. New Hampshire had the lowest raw rate at 22 unintended pregnancies per 1,000 women of reproductive age, while New Jersey had the highest at 45 per 1,000.
Racial and ethnic disparities remain significant, though they’ve been narrowing. Between 2010 and 2019, unintended pregnancy rates dropped 23% among Hispanic women, 17% among non-Hispanic women of races other than Black or white, 12% among Black non-Hispanic women, and 11% among white non-Hispanic women. The overall U.S. pregnancy rate also fell 12% during that decade, from 97.3 to 85.6 per 1,000 women aged 15 to 44.
The Global Picture
Worldwide, the unintended pregnancy rate has been declining for decades, dropping from 79 per 1,000 women of reproductive age in 1990–1994 to 64 per 1,000 in 2015–2019. That still translates to about 121 million unintended pregnancies every year. Six out of 10 of those end in induced abortion, according to the World Health Organization.
Why Contraception Doesn’t Prevent All of Them
Even people who use birth control can end up with an unplanned pregnancy, because no method is perfect in real-world conditions. The gap between “perfect use” and “typical use” is often enormous. Male condoms, for instance, have an 18% failure rate with typical use during the first year. The birth control pill fails about 9% of the time with typical use. Long-acting methods perform far better: the copper IUD has a 0.8% typical-use failure rate, the hormonal IUD drops to 0.2%, and the implant sits at just 0.05%.
That 18% condom failure rate doesn’t mean condoms are defective. It reflects the reality of human behavior: inconsistent use, incorrect use, and the occasional time someone skips it altogether. The same applies to the pill, where missed doses are the primary driver of failures.
Why People Don’t Use Contraception
A common assumption is that unplanned pregnancies happen mostly because people can’t access or afford birth control. The data tells a different story. Surveys across 52 countries found that women who wanted to avoid pregnancy but weren’t using contraception rarely cited lack of awareness, lack of access, or cost as the reason.
Instead, the most common reasons were concerns about side effects and health risks (26%), having sex infrequently (24%), personal or family opposition to contraception (23%), and breastfeeding or not yet menstruating after a recent birth (20%). Among sexually active unmarried women, infrequent sex was the top reason (49%), followed by not being married (29%) and side effect concerns (19%). These patterns suggest that expanding access alone won’t eliminate unplanned pregnancies. Side effect concerns and cultural attitudes play a larger role than most people realize.
The Financial Cost
Unplanned pregnancies carry a substantial public price tag. Federal and state government spending on births, abortions, and miscarriages resulting from unintended pregnancies totaled $21 billion, according to an analysis by the U.S. Joint Economic Committee. That figure includes Medicaid-covered prenatal care, delivery costs, and postpartum services, since publicly funded insurance covers a disproportionate share of unintended births.
The Trend Is Improving, Slowly
The long-term trajectory in the U.S. is positive. The unintended pregnancy rate dropped 15% between 2010 and 2019, and declines occurred across all major racial and ethnic groups. Researchers attribute much of this to increased use of long-acting contraceptive methods like IUDs and implants, which remove the daily compliance factor that makes pills and condoms less reliable in practice. Still, with more than 4 in 10 pregnancies unplanned, the U.S. rate remains high compared to many other wealthy nations.