To encourage parents to plan for security and assume responsibility for their children, there must be no incremental increase in AFDC benefits to a family as a result of a child born to that parent ten or more months after the family begins to receive AFDC. This section does not apply if the department establishes that the child was conceived as a result of rape or incest. The State may provide benefits to a child born after ten months in the form of vouchers that may be used only to pay for particular goods and services specified by the State as needed for the child’s mother to participate in education training and employment related activities.