Judicial Approval of Underage Marriages.) (a) The court, after a reasonable effort has been made to notify the parents or guardian of each underaged party, may order the county clerk to issue a marriage license and a marriage certificate form to a party aged 16 or 17 years who has no parent capable of consenting to his marriage or whose parent or guardian has not consented to his marriage.
     (b) A marriage license and a marriage certificate form may be issued under this Section only if the court finds that the underaged party is capable of assuming the responsibilities of marriage and the marriage will serve his best interest. Pregnancy alone does not establish that the best interest of the party will be served.