They die!!! Why though? If Jacob can cure cancer and even resurrect Locke from the dead, why cant he save the island pregos? I cant remember the whole conversation with Locke and Richard. But I find it interesting that Richard didn’t want to focus on the island pregos dieing and wanted to focus on other issues. Since Richard and Jacob talk to eachother, it would seem Jacob shares the same lack of concern for this issue. It may also be possible Jacob is the reason pregnant women die on the Island. Possibly he didn’t want more candidates to take over his reign??? Not really sure.