LOS ANGELES — Arnold Schwarzenegger’s housekeeper was pregnant with his love child at the same time his wife was expecting the couple’s youngest son, according to a new report.

Mildred Patricia Baena, who worked for the powercouple for over two decades, reportedly had her baby in October 1997, just a month before Maria Shriver gave birth to Christopher Sargent, who is now 13, TMZ.com reported.

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Baena, 50, did not inform the movie star turned politician of his paternity until the child was a toddler, according to the celebrity website.

She instead listed her then-husband, Rogelio Baena, as the child’s father on the birth certificate.

The former California governor admitted Monday he fathered a child with a longtime employee, one week after he announced his separation from Shriver after 25 years of marriage.

Shriver, who has four children with the former Austrian bodybuilder, called the revelation “painful and heartbreaking,” in a statement released Tuesday.

“As a mother, my concern is for the children. I ask for compassion, respect and privacy as my children and I try to rebuild our lives and heal,” she added.

The 55-year-old, who is a member of the prominent Kennedy family, appeared on Oprah Winfrey’s grand finale Tuesday night, telling the talk show host, “For more than 30 years, you bestowed the most amazing friendship on me, giving me love, support, wisdom and most of all, truth.”

Baena, a native of Guatemala, voluntarily left her position with the couple in January, reportedly receiving a severance payment and leaving “on good terms.”

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