This includes a near-total ban in Oklahoma, according to Guttmacher Institute.

Twenty-eight restrictions on abortion were signed into law across seven states between April 26 and April 29, according to a new report, marking an especially hostile week for abortion rights.

According to the Guttmacher Institute, a research organization that supports reproductive rights, the pace of restrictions enacted so far this year puts 2021 on track to see historic high numbers of abortion restrictions. At this point in 2011, regarded by the research institute as the most restrictive year for abortion rights since Roe v. Wade was decided, 42 restrictions had been enacted; this year, the nation is up to 61 restrictions enacted across 13 states.

PHOTO: Oklahoma Gov. Kevin Stitt speaks during a news conference in Oklahoma City, Feb. 11, 2021.
Sue Ogrocki/AP
Oklahoma Gov. Kevin Stitt is signing three anti-abortion bills into law. Stitt announced on Twitte…Read More

The wave of abortion restrictions on the state level comes as the Biden administration has begun taking steps to fulfill its promise of shoring up abortion rights. It also comes as the Supreme Court has a new makeup with the death of Justice Ruth Bader Ginsburg and former President Donald Trump’s appointment of Justice Amy Coney Barrett, who signed anti-abortion advertisements as a Notre Dame Law School “University Faculty for Life” group member.MORE: Is Ginsburg’s death the end of Roe v. Wade? This time, some experts say, it could be.

Nash, of Guttmacher, told ABC News in an email the rise in restrictions this year could be due to “a far more conservative federal court system, backlash to the 2020 presidential election, and more conservative state legislatures that know abortion restrictions play well to the extreme ends of their base.”

The laws signed this week include a near-total ban on the procedure in Oklahoma and a ban on abortion after 20-weeks’ gestation in Montana.

PHOTO: Arizona Republican Gov. Doug Ducey speaks during a bill signing, April 15, 2021, in Phoenix.
Ross D. Franklin/AP
Arizona Republican Gov. Doug Ducey signed a sweeping anti-abortion bill on April 27, 2021, tha…Read More

Some of the laws, including the Oklahoma ban, are expected to be challenged by rights groups. This is by design, Nash posited, as conservative lawmakers have been pushing laws in the hopes a challenge will make it up to the Supreme Court that could challenge the Roe decision itself. Roe v. Wade, the 1973 Supreme Court decision that established abortion as a right nationally, was further endorsed by the Supreme Court in 1992’s Planned Parenthood v. Casey and 2016’s Whole Woman’s Health v. Hellerstedt.

Many of the other newly signed laws, however, may go unchallenged, including laws that, in practice, make abortion more difficult to access and require doctors provide medically dubious information.