go to your local state office and request that a child support order be started. sometimes there is a fee of $35 but if you get assistance thru the state, it will most likely be free.
you will need to go to court to determine what he needs to pay. at this hearing they may also determine visitation. whether or not he sees the child, he must pay child support. Have it garnished from his work checks. it is the safest way to make sure you will indeed get paid. good luck