If the issue as to whom the father of the child is, a paternity action can be filed in the courts to make that determination.
Paternity issues may also be brought at the Child Support Enforcement Agency if one party seeks to obtain support for their child.
If the parties are married, and one party believes the father may be someone other than the husband, a paternity determination may also be done within a divorce.
If any of these issues are present in your situation, Gillespie Law can help.