A large Missouri hospital chain briefly stopped providing emergency contraception amid confusion over whether the state’s abortion ban could put doctors at risk of criminal charges for providing the medication, even for sexual assault victims.

St. Luke’s Health Kansas City said in a statement Wednesday that it would resume offering the medication known as the morning after pill, a day after it told The Kansas City Star that its Missouri hospitals would halt emergency contraception.

It did so after the state’s attorney general issued a statement stating unequivicolly that emergency contraception is not illegal under an abortion ban that was enacted minutes after Friday’s U.S. Supreme Court decision overturning Roe v. Wade. The Missouri law bans all abortions except in cases of medical emergency.

“Saint Luke’s Health System is aware of and continues to closely monitor legal developments regarding Missouri’s abortion trigger law, including recent comments from the Missouri Attorney General’s Office and the Governor of Missouri regarding the use of emergency contraceptives,” St. Luke’s said Wednesday. “Following further internal review, Saint Luke’s will now resume providing emergency contraceptives, under new protocols, at all Missouri-based Saint Luke’s hospitals and clinics.”

The statement said the “ambiguity of the law, and the uncertainty even among state officials about what this law prohibits, continues to cause grave concern and will require careful monitoring.”

Since the Supreme Court ruling, abortion rights supporters have warned about the ambiguity of some state abortion bans and that contraception could be targeted.

Lawmakers in some states with majority-conservative legislatures have suggested that. Already in Idaho, emergency contraception was prohibited at school-based health clinics last year under a law banning public funding for “abortion related services.”

Adding to the worries were comments from Supreme Court Justice Clarence Thomas, who in a separate concurring opinion urged colleagues to overturn other high court rulings protecting same-sex marriage, gay sex and the use of contraceptives.