If a new Mississippi law survives a court challenge, it will be nearly impossible for most pregnant women to get an abortion there.Or, potentially, in neighboring Louisiana. Or Alabama. Or Georgia.The Louisiana legislature is halfway toward passing a law — like the ones enacted in Mississippi and Georgia — that will ban abortions after a fetal heartbeat is detected, about six weeks into a pregnancy and before many women know they’re pregnant. Alabama is on the cusp of approving an even more restrictive bill.State governments are on a course to virtually eliminate abortion access in large chunks of the Deep South and Midwest. Ohio and Kentucky also have passed heartbeat laws; Missouri’s Republican-controlled legislature is considering one.