COLUMBIA, S.C. (AP) — A state judge has ruled that South Carolina can continue to enforce a ban on nearly all abortions around six weeks after conception as an appeal continues on what exactly defines a heartbeat under the law.

Planned Parenthood had asked the law be set aside as courts parse through its wording, which includes alternate definitions of when cardiac activity starts, potentially extending the time after which abortions can no longer be performed under the 2023 law.

The law says abortions cannot be performed after an ultrasound can detect “cardiac activity, or the steady and repetitive rhythmic contraction of the fetal heart, within the gestational sac.”

The definition is currently being interpreted to mean around six weeks after someone’s last period. But what follows the “or” in the sentence could require that a heart has formed, and medical experts say that doesn’t happen until around nine weeks.