Nearly one-in-five U.S. adults (19%) say that abortion should be legal in all cases, with no exceptions. Fewer (8%) say abortion should be illegal in every case, without exception. By contrast, 71% either say it should be mostly legal or mostly illegal, or say there are exceptions to their blanket support for, or opposition to, legal abortion. As in the past, more Americans say abortion should be legal in all or most circumstances (61%) than illegal in all or most circumstances (37%). But in many ways, the public’s attitudes are contingent upon such circumstances as when an abortion takes place during a woman’s pregnancy, whether the pregnancy endangers a woman’s life and whether a baby would have severe health problems.

There is evidence that many people are cross-pressured on this issue. For example, more than half of Americans who generally support abortion rights – by saying it should be legal in “most” or “all” cases – also say the timing of an abortion (i.e., how far along the pregnancy is) should be a factor in determining its legality (56%).

The same share of people who generally support legal abortion say abortion providers should be required to get the consent of a parent or guardian before performing an abortion on a minor (56%).

And about a third of Americans who generally support legal abortion (33%) say the statement “human life begins at conception, so a fetus is a person with rights” describes their own view at least “somewhat” well.

. . . .At the same time, the survey shows that large numbers of Americans favor certain restrictions on access to abortions. For example, seven-in-ten say doctors should be required to notify a parent or legal guardian of minors seeking abortions. And most of those who say abortion should be legal in some cases and illegal in others say that how long a woman has been pregnant should be a factor in determining whether abortion is legal or illegal (56% among all U.S. adults).

Combined with the 8% of U.S. adults who say abortion should be against the law in all cases with no exceptions, this means that nearly two-thirds of the public thinks abortion either should be entirely illegal at every stage of a pregnancy or should become illegal, at least in some cases, at some point during the course of a pregnancy.

. . . .The survey data shows that as pregnancy progresses, opposition to legal abortion grows and support for legal abortion declines. Americans are about twice as likely to say abortion should be legal at six weeks than to say it should be illegal at this stage of a pregnancy: 44% of U.S. adults say abortion should be legal at six weeks (including those who say it should be legal in all cases without exception), 21% say it should be illegal at six weeks (including those who say abortion should always be illegal), and another 19% say whether it should be legal or not at six weeks “depends.” (An additional 14% say the stage of pregnancy shouldn’t factor into determining whether abortion is legal or illegal, including 7% who generally think abortion should be legal, and 6% who generally think it should be illegal.)

At 14 weeks, the share saying abortion should be legal declines to 34%, while 27% say illegal and 22% say “it depends.”

When asked about the legality of abortion at 24 weeks of pregnancy (described as a point when a healthy fetus could survive outside the woman’s body, with medical attention), Americans are about twice as likely to say abortion should be illegal as to say it should be legal at this time point (43% vs. 22%), with 18% saying “it depends.”