"Everybody is healthy and happy," a rep for the actor said.
In January, Chad told Access Hollywood that Kim broke the good news of her pregnancy with just a grin and a look in her eye.
"She woke up with a very big smile on her face and I knew exactly what that meant," he told Access.
Chad and Kim have been dating since January 2007. Mabel is the couple's first child.
Chad was previously married to two-time Oscar-winner Hilary Swank. They split in 2006 after eight years of marriage.
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