And while the supermodel may be famous for her years spent strutting catwalks in designer looks, her personal style has always leaned more earthy and laid-back — including when she was pregnant with her first two children, whom she shares with ex-husband Tom Brady.
Ahead, take a look back at how Bündchen dressed while expecting son Benjamin and daughter Vivian.
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June 2009: Days after announcing that she and ex Tom Brady were expecting their first child together, Bündchen stepped out in a pretty purple slip dress paired with a matching lilac scarf. Flynetpictures.com / SplashNews.com
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June 2009: She teamed white jeans and a printed 3.1 Phillip Lim top with her trusty brown Prada tote. Flynetpictures.com / SplashNews.com
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August 2009: Bündchen flew under the radar in brown linen pants, a simple white tee and a baseball cap, using her jacket to shield her baby bump. / SplashNews.com
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September 2009: Rocking merch from the UN Climate Change Conference while out and about in NYC. Shutterstock
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October 2009: Looking every inch the off-duty fashion icon in a black leather jacket, moto boots and a graphic tee. / SplashNews.com
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November 2009: Even supermodels love their Uggs! / SplashNews.com
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November 2009: Comfort’s a must when you’re expecting — and it seems Bündchen loves this cozy zip-up sweater so much, she grabbed it in multiple colors. / SplashNews.com
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September 2012: While pregnant with her second, daughter Vivian, Bündchen strolled around Boston in classic cutoffs and a breezy white blouse. GC Images
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September 2012: You can never go wrong with a striped tee and flares. / SplashNews.com
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September 2012: Leave it to Bündchen to make drop-crotch pants and a Boston Kung Fu Tai Chi tank look downright fashionable. GC Images
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October 2012: Stepping out in stripes. GC Images
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November 2012: A monochromatic moment for dinner in Miami. FilmMagic
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November 2012: Soaking up sun in a leopard-spotted bikini. / SplashNews.com
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November 2012: Strolling the beach in a chic and easy T-shirt dress. / SplashNews.com