Fake Heiress? I'm the True Boss

Heiress Caroline Sterling's wedding is sabotaged by her fiancé Nathan Prescott's jealous sister, who questions her unborn child's paternity. A risky amniocentesis confirms the baby is a Prescott. Caroline's father announces the baby as a girl, causing the Prescotts to reject her. Planning to divorce after the baby is born, Caroline shocks the Prescotts on divorce day when they realize she has a son, not a daughter. She leaves to claim her fortune, leaving the Prescotts heirless.