Dianna Agron, <i>Glee</i> Dianna Agron, Glee

It's an episode nine months in the making as former Cheerio Quinn Fabray (Dianna Agron) finally goes into labor in Glee'sclimactic season finale (airing tonight, 8:59/7:59c on Fox). And, according to Agron, fans had better watch with hankies in hand.

"Quinn's going to give the baby up for adoption, even though she's not entirely sure to whom until the very end," reveals the actress, teasing that Will's estranged wife, Terri (Jessalyn Gilsig) — the infant's onetime would-be adoptive mother — will be buzzing about.

"If Quinn were to give the baby to her after all Terri's done to Mr. Schuester [Matthew Morrison], it would have to be well-deserved," says Agron. "[But] in this show, anything is possible."

(Psst: The tot's fate isn't the only drama in the works, as New Directions finally faces off against rival glee club Vocal Adrenaline.)

So what will the future hold next season for the now-bumpless blonde? "I have a suspicion that Quinn might return to the Cheerios," says Agron. "It will be interesting to see what type of girl she becomes."

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