If you're a mom you already know this one, but if not it might be news:
You leave the hospital still looking about 4 or 5 months pregnant.
And you look that way for anything from a few days to a few months, depending on various factors (everything from how fast the swelling goes down and how much weight you gained during the pregnancy to how much water you're drinking). The important thing to remember: it's fine. It'll come off when it comes off, and if that takes a few months…hey, so did growing an entire human being.