On her fourth pregnancy, Klum has mastered the art of looking chic while carrying a bun in the oven. If you have a really special occasion while pregnant, consider having your gown custom fitted like Klum. It's so much more flattering and chic than the big flowing tent dress that will be your other option. A fuss-free updo hairstyle and neutral makeup keep the focus where it should be, on the gorgeous gown and beautiful bump.

Most of Berry's pregger looks were first-rate, but she missed the mark here. Too much information in the bust area and a hairstyle that looks more like an afterthought add up to an overall look that lacks taste. Remember, the same rules for coordinating a look still apply when you're expecting.