A woman whose fetus was unlikely to survive called more than a dozen abortion clinics before finding one that would take her, only to be put on weekslong waiting lists. A teen waited seven weeks for an abortion because it took her mother that long to get her an appointment. Others seeking the procedure faced waits because they struggled to travel hundreds of miles for care.

Such obstacles have grown more common since Roe v. Wade was overturned in June 2022, doctors and researchers say, causing delays that can lead to abortions that are more complex, costly and in some cases riskier — especially as pregnancies get further along.

About half of U.S. states now have laws that ban or restrict access to abortion. Because of that, many clinics don’t offer the procedure, which has increased demand for appointments at the remaining providers.