The court has exclusive original jurisdiction over an unborn child alleged to be in need of protection or services which can be ordered by the court whose expectant mother habitually lacks self-control in the use of alcohol beverages, controlled substances or controlled substance analogs, exhibited to a severe degree, to the extent that there is a substantial risk that the physical health of the unborn child, and of the child when born, will be seriously affected or endangered unless the expectant mother receives prompt and adequate treatment for that habitual lack of self-control. The court also has exclusive original jurisdiction over the expectant mother of an unborn child described in this section.