Board Thread:Spoilers!/@comment-413929-20150114222625/@comment-1894786-20150325043120

8Rob wrote: Oh and I think the babies couldn't be switched because in pilot, Rumple touched Snow's belly and said something like "this baby will be the saviour"

So, Snow's baby is the Saviour, and that's Emma I don't buy this "Lily and Emma got switched" theory one bit, but Rumple did have his powers in that cell, we learned that in season 2. He had his powers and could've gotten out at any point, at the very least, he had power whenever his hand left the cell.

He could've easily switched the babies the instant his finger made contact. He never said "your child is the savior", he said "that thing growing in your belly" and "on its 28th birthday, the child will find you". So it's entirely plausible Snow was no longer carrying her own child, but she could still think it's her own child. It would be all of Rumple's doing, like everything else in this damn world. Also, Emma and Mal are blonde (while no one in Charming or Snow's family is) and both Snow and Lily are brunette.

So while I don't believe this theory is possible AT ALL, I can certainly understand the argument for it.