A federal judge ruled Thursday that several New York crisis pregnancy centers could continue to speak freely about the abortion pill reversal protocol as state Attorney General Letitia James cracks down on pregnancy centers in the state.

U.S. District Judge John Sinatra granted a preliminary injunction to the National Institute of Family and Life Advocates, Gianna’s House, and the Options Care Center against James, who has sued pro-life pregnancy centers across the state over their promotion of the abortion pill reversal protocol.

The protocol is a method backed by pro-life organizations where a woman can take a prescribed dose of bioidentical progesterone to potentially reverse the effects of mifepristone and save an unborn child if she changes her mind at the last minute about going through with the abortion.

“The First Amendment protects Plaintiffs’ right to speak freely about [abortion pill reversal] protocol and, more specifically, to say that it is safe and effective for a pregnant woman to use in consultation with her doctor,” Sinatra wrote in his ruling. “Indeed, the ‘very purpose of the First Amendment is to foreclose public authority from assuming a guardianship of the public mind through regulating the press, speech, and religion.’”

The pro-life groups, represented by Alliance Defending Freedom, announced a lawsuit against James in May after she launched lawsuits against 11 pregnancy centers accusing them of false advertising.