The mother-to-be, who is currently nine months pregnant with her first child, delighted fans with the touching images.
One included an image of her racing driver husband Eugenio Amos kissing her stomach. "My two loves," she captioned the adorable snap.
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Clearly proud of her big bump, the Missoni heiress shared others pictures, including two mirror shots that show her posing to the side.
"Look at my belly, look at my belly, look at my belly…. #hipnotic," she wrote, along with "#29weeks #belly #7thmonth #mirrors #OttoAmos #OttoHermann."
The hashtags indicate that Margherita and Eugenio may be naming their baby after her late grandfather, Ottavio Missoni, who was the founding member of the hugely successful clothing range. He passed away in May at the age of 92.
Hermann, meanwhile, is an Amos family name.
Earlier this year, Margherita's uncle Vittori Missoni disappeared after his plane went missing on January 4 in Venezuela.
The 58-year-old, along with his wife, Maurizia Castiglioni, as well as two Italian friends and two Venezuelan crew members, all vanished after their aircraft fell off-radar en route to Caracas.
The wreck was found on June 27 in the waters north of Los Roques, Venezuela, six months after it disappeared.
In June 2012, Margherita tied the knot with her racing driver love in a playground setting complete with acrobats, fortune tellers and painted caravans.
Royal photographer Mario Testino and former French Vogue editor Carine Roitfeld were among those coaxed away from the Milan Menswear shows to share the couple's joy.
Margherita was every inch the blushing bride in an elaborate Giambattista Valli creation fashioned with Missoni silk and organza.
She topped off her bohemian look with a gothic-style tiara that secured her intricate braids.
The gorgeous brunette later changed into a blush pink dress, once again created by her friend Giambattista Valli, and replaced her headband with flowers.
Guests, who also included shoe designer Charlotte Olympia Dellal and socialite Eugenie Niarchos, sat Moroccan style on cushions during the celebration in the quaint town of Brunello.
Many paid respect to the bride's heritage by wearing Missoni designs.
The bridesmaids included Margherita’s sister Teresa and Tatiana Santo Domingo, who is dating Andrea Casiraghi – the son of Monaco’s Princess Caroline.
They were pretty in patterned dresses and wore flower garlands in their hair .