‘American Pie’s’ Chris Klein, wife Laina are expecting their first child

It’s American baby time: Chris Klein is expecting his first child.

The sensitive lacrosse player of “American Pie� and his wife, Laina, announced on Monday that they’ll be expanding their family, tweeting a sweet photo of Laina’s growing belly on Klein’s 37th birthday.

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“My beautiful wife Laina and I are expecting our first child. 23 weeks along. Gratefully blessed on my 37th B-Day,� the “Election� actor wrote.

Twenty-three weeks would put Laina’s due date sometime in early August, the same month in which they’d be celebrating their one-year wedding anniversary.

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Klein and his wife dated for nearly four years before getting engaged in December 2014. The parents-to-be tied the knot last August at Montana’s Rainbow Ranch before jetting off to Italy.

The happy news comes long after the “Wilfred� actor’s two 2010 DUI arrests, jail sentence and subsequent voluntary stint in rehab.

For those missing Klein’s comedic chops, he’ll be guest starring on Tuesday’s episode of Fox’s comedy “The Grinder.� The actor tweeted a pic with series star Rob Lowe to promote the appearance.

“Had an awesome time w/@RobLowe catch it tonight on @TheGrinderFox at 9:30/8:30c on FOX #TheGrinder,� Klein wrote.

Klein’s rep did not immediately respond to The Times’ request for comment.

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