Before we begin to speculate how the actress will recalibrate her seductative style now that there's a baby on board (father-to-be is fiancé, Romain Dauriac), we're paying tribute to some of her best pre-pregnancy ensembles. Danger, curves ahead.
Now that's she's "in the family way", Johansson would need superpowers to fit into the snug Versace dress she wore to the Comic Con press junket for Captain America: The Winter Soldier with co-star, Chris Evans, last summer in San Deigo.
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The actress shone in Dolce & Gabbana at the premiere of Her in Rome last November. Showing that much leg can prove challenging during pregnancy, however, thanks to swollen feet and a serious case of cankles.
The actress opted for a mint Roland Mouret frock to attend the Don Jon premiere in New York. Too bad Mouret hasn't expanded into maternity wear.
The Saint Laurent dress Johansson wore to the Toronto Film Festival last year is about as conducive to pregancy as sushi and vodka shots.
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Sadly, Johannson won't be reconnecting with the form-fitting Catherine Deane dress she wore last fall on Jimmy Kimmel any time soon either.