Oh Baby! Tonight's Glee Has the Moment We've All Been Waiting For

Jessalyn Gilsig calls this episode "The Reckoning" because Terri's huge secret is finally revealed, and it is "so so sad"

"I call it 'The Reckoning.' "

This is what Jessalyn Gilsig tells us about tonight's episode of Glee, in which "it all blows up."

Jessalyn, of course, flawlessly plays Will's (Matthew Morrison) hilariously flawed wife, Terri, who has been harboring a crazy secret all season long: That "baby bump" she's rocking is actually of the Styrofoam variety.

And tonight, it all comes to a head. (The secret, not the baby, that is.)

So are Will and Terri doomed? And does this mean Jessalyn will leave the show? Here's the scoop...