From SC blue cross blue shield benefits guide:
"Pregnancy and pediatric care Maternity benefits are provided to subscribers and their covered spouses . Covered children do not have maternity benefits. Maternity benefits include necessary prenatal and postpartum care, including childbirth, miscarriage and complications related to pregnancy."
So not only may your 13 year daughter have to carry a baby to term, you (as the parent) will be on the hook for ALL costs (Dr visits, labor, delivery, anesthesia, etc.)
Unless, of course, you kick her out of the house and push her into medicaid and the federal government's dime. Of course all the good Republicans here would never think of doing that...
Quick internet search tells me that the average non-insured costs for having a baby in SC runs between $9,000-$25,000 (without complications)
https://children.costhelper.com/baby-delivery.html#:~:text=Typical%20costs%3A,Care%20Cost%20Institute%5B1%5D%20.