Women who want to purchase health insurance if Obamacare is repealed and replaced may have to pay more than $1,000 a month for extra coverage, according to a report from the Congressional Budget Office.

That would occur in states that decide to undo the Obamacare rule that requires insurers to offer a wide range of medical services, including maternity care. For people who do not need the care, premiums would become less expensive, but women and families who need it would have to purchase a rider.