Is there a clear contradiction between 'Or, eligibility could be restricted to those who have already been pregnant, or at least sexually active; to those over age 13, or under age 21; or some combination thereof.' and 'Eligibility is restricted to those over age 13, quite possibly.'
Or, eligibility could be restricted to those who have already been pregnant, or at least sexually active; to those over age 13, or under age 21; or some combination thereof.###Eligibility is restricted to those over age 13, quite possibly.