See which couples pledged to say "I do" this season
Leah Messer and Jeremy Calvert
"He put an ornament on the tree that had their names and the date on it," says an insider of Calvert's covert way of proposing to his live-in girlfriend of five months over Christmas. And Teen Mom's Messer -- already the mother of twins -- will have an extra special 2012: She's expecting her first child with Calvert!
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