When Kate Middleton is pregnant it's doubly fun. For one, there's another adorable heir on the way. But also ... there's the clothes. All the magnificent, stylish maternity clothes the duchess wears while she's gestating. Staying stylish during pregnancy is no easy feat, but not surprisingly, Kate has managed to do every time (seemingly with ease), and no doubt this time will be no different.

Kate, who's been crowned one of the most fashionable women in the world countless times, always maintains her impeccable style during her pregnancies. At every appearance, the duchess looks polished, comfortable, and, most importantly, like herself. None of her maternity looks ever appear to be something she wouldn't wear without a bump. So, basically, she's achieved the impossible.

From perfectly tailored wrap dresses that suited her small belly beautifully to bright colors and heels that accentuated her gorgeous growing bump, we were always left wanting more when it came to Kate's maternity looks. In fact, being that the duchess is such a recycler of clothes, we're assuming -- and hoping! -- that she'll repeat some of her beautiful outfits from her pregnancies with George and Charlotte.

Eager to catch a glimpse of Kate's maternity style? Here are 16 of her most iconic pregnancy looks from the past. Oh, Kate. You really can do no wrong.

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