VISITATION

Look into Family Law in your state. A parenting agreement must be filed within the courts to establish visitation, otherwise, visitation does not have to be awarded to the other parent. However, it wouldn't look good for the parent denying visitation if it does go to court.
Child support is usually set up at the same time the parenting agreement is established. A mediator can be used to help the mother and father agree on possible disagreements on determining a suitable parenting plan.
I can give you more information if I know more about your situation...Do you want the child to see the other parent? Are there any concerns about the parent being unsuitable? Does both parents currently get to see the child?

Know there is know such law that I have heard of. If there is know court order stating visitation then I would sujest you file a petition asking the court to grant you visitation. If there is an order in your divorce degree stating visitation and your being allowed to see the child or children you can file a motion against her or him for contempt. You might want to contact an attorney to find out your rights in your state for all states vary. Good luck!