Jason Biggs Documents Son's Birth in Videos

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Jason Biggs is a dad!

Jason Biggs and wife Jenny Mollen became parents on Saturday, and the proud papa documented the experience in a series of Instagram videos.

Biggs, 35, first announced the pregnancy news in July during an appearance on Chelsea Lately.

When asked about his wife, who host Chelsea Handler noted was "engorged" in the chest area as of late, Biggs inquired happily, "Would you like to know why?"

In response to Handler's hesitant "sure," the actor replied, "'Cause I put a baby in her belly!"

Biggs wed Mollen in 2008 after meeting on the set of the film, My Best Friend's Girl.