Abortion access has been uneven and inadequate for decades. But with the recent announcement that the Supreme Court will hear a major abortion case next term concerning a Mississippi state law that would ban almost all abortions after fifteen weeks of pregnancy, the threat has reached new levels.

Dobbs v. Jackson Women’s Health Organization strikes at the heart of the precedent set in Roe v. Wade in 1973 that abortion is permitted until fetus viability, generally at around twenty-four weeks. As it hears the case, the Supreme Court will consider one clearly delineated question: whether or not “all pre-viability prohibitions on elective abortions are unconstitutional.” Mary Ziegler, author of Abortion and the Law in America, said recently that the court taking up the case could result in overturning Roe, but it could also get rid of viability as the point at which states can ban abortion.

According to the Guttmacher Institute, sixteen states have attempted to ban abortion before viability but have been stopped by court order. If the court upholds Mississippi’s fifteen-week abortion ban, it would directly challenge the protections guaranteed under Roe and make it even more difficult for people in these states to access abortion care.