how do you think they're going to hide Ginnifer Goodwin's still pregnancy after MM gives birth next week?

They'll probably keep her on-screen.. Maybe just make her stomach a little less visible.

But women don't go back to being skinny immediately after giving birth. Even after the baby is gone, they still appear to be kind of pregnant. So I'm sure they'll be able to make it work, but only for so long since, in a real life situation, women would start to lose the weight a little while after birth.