“Late-term abortion” is a phrase used widely in political debate, but it has no accepted medical definition. In clinical medicine, “late term” refers to a pregnancy at 41 weeks of gestation, a point at which abortions simply do not occur. What most people mean when they search this term is abortion later in pregnancy, typically at or after 21 weeks. These procedures are rare, accounting for less than 1% of all abortions in the United States.
Why Doctors Don’t Use This Phrase
The American College of Obstetricians and Gynecologists (ACOG) has stated explicitly that “late-term abortion” has no clinical or medical significance. The confusion stems from how pregnancy timing works. Obstetricians classify pregnancies as early term (37 to 38 weeks), full term (39 to 40 weeks), late term (41 weeks), and post-term (42 weeks and beyond). No abortions happen during any of these windows. A pregnancy at 21 or 24 weeks is in the second trimester, well before “term” begins.
The medically accurate way to describe these procedures is “abortion later in pregnancy” or by referencing the specific gestational age, such as “abortion at 22 weeks of gestation.” The distinction matters because the phrase “late-term” implies a procedure happening near or after a due date, which gives a fundamentally inaccurate picture of what’s occurring.
How Common These Procedures Are
CDC surveillance data from 2021 shows that 93.4% of abortions in the United States happen at or before 13 weeks of pregnancy. Another 5.7% occur between 14 and 20 weeks. Only 0.9% occur at 21 weeks or later. In practical terms, the vast majority of abortions happen in the first trimester, when the procedure is simplest and most accessible.
Why Some Abortions Happen Later
There is no single reason someone has an abortion later in pregnancy. The causes generally fall into two categories: medical circumstances that emerge mid-pregnancy and barriers that delay access to earlier care.
Medical Reasons
Many serious fetal conditions cannot be detected until the standard anatomy scan, which happens between 18 and 22 weeks of pregnancy. This ultrasound checks fetal organ development and can reveal conditions like anencephaly (where major parts of the brain and skull don’t form), severe heart defects, spina bifida, and chromosomal conditions such as trisomy 18 and trisomy 13. Some of these conditions are fatal before or shortly after birth. Others mean a life of severe medical challenges.
For a family that wanted the pregnancy, receiving this diagnosis at 20 weeks means they are only beginning to process the news at a point already well into the second trimester. Additional testing to confirm a diagnosis can take days or weeks more. By the time a decision is made and a procedure is scheduled, the pregnancy may be at 22, 24, or more weeks along.
Maternal health emergencies also play a role. Conditions like severe preeclampsia or other pregnancy complications can develop suddenly in the second or third trimester and pose a serious threat to the pregnant person’s life or long-term health.
Access Barriers
Not everyone who seeks an abortion later in pregnancy wanted one later. Research published in 2024 found that three in five people seeking abortion care experienced obstacles that caused delays. The most common were cost-related barriers (affecting 45% of those delayed), access-related barriers (43%), and travel-related barriers (35%). People who had to travel from another state or more than 100 miles to reach a clinic were significantly more likely to end up seeking care beyond 13 weeks. Those who lacked savings for unexpected expenses or struggled to pay for the procedure also faced longer delays.
In practice, this means a person who discovers a pregnancy at 8 weeks but cannot afford the procedure, find transportation, or get time off work may not receive care until weeks later. Each delay pushes the pregnancy further along, narrows the number of providers who can help, increases the cost, and often requires more travel, creating a cycle that compounds itself.
What the Procedure Involves
In the second trimester (14 to 26 weeks), the standard surgical procedure is called dilation and evacuation, or D&E. Preparation begins by softening and opening the cervix using medication, small dilating sticks, or both. These dilators are often placed a day before the procedure and left overnight, gradually expanding as they absorb moisture from the body.
On the day of the procedure, with the patient under sedation or anesthesia, the doctor removes the dilators and uses suction along with surgical instruments, guided by ultrasound, to empty the uterus. The procedure itself typically takes under 30 minutes, though the full process including preparation spans one to two days. Later in pregnancy, the process may involve labor induction instead, where medication causes the body to deliver.
The Question of Fetal Pain
Fetal pain is frequently raised in debates about abortion later in pregnancy, and it has been used as the basis for gestational age bans in several states. The scientific evidence, however, points in a clear direction. ACOG’s position, based on multidisciplinary expert review, is that the neural circuitry required to consciously experience pain does not develop until the third trimester at the earliest. The ability to distinguish touch from painful touch develops late in the third trimester.
Fetal movement, which begins well before this point, is not an indication of pain perception. Pain, as defined by the medical and scientific community, requires conscious recognition of a harmful stimulus, not simply a reflexive response to it.
Legal Landscape Across the United States
As of April 2026, 41 states have some form of abortion ban in effect. Thirteen of those states ban abortion entirely, with only narrow exceptions. Twenty-eight states ban abortion based on gestational age: seven at or before 18 weeks, and 21 at some point after 18 weeks. Nine states and the District of Columbia do not restrict abortion based on gestational age.
Most state bans include limited exceptions, commonly for threats to the life of the pregnant person, threats to physical health, pregnancies resulting from rape or incest, or diagnoses of lethal fetal anomalies. However, the Guttmacher Institute notes that many of these exceptions are “designed to be unworkable, containing vague and contradictory language and imposing cumbersome requirements.” In practice, this means that even where exceptions technically exist, providers may be uncertain whether a specific clinical situation qualifies, leading to delays or denials of care.
The legal concept of “viability,” the point at which a fetus could potentially survive outside the uterus, is generally placed between 24 and 26 weeks. Before the Supreme Court’s 2022 Dobbs decision, viability served as the constitutional threshold for state restrictions. That framework no longer applies, and states now set their own limits independently.
Who Seeks Abortion Later in Pregnancy
The popular image of someone casually choosing a late abortion does not match the data. People who have abortions after 21 weeks are disproportionately those who faced the most obstacles: people in poverty, people in states with restrictive laws who had to arrange out-of-state travel, young people who didn’t recognize pregnancy symptoms early, and people who received devastating fetal diagnoses at their mid-pregnancy ultrasound. The procedure is more expensive, harder to access, and more physically involved than a first-trimester abortion. No one arrives at it without significant circumstances pushing them there.