Middleton sported a bright yellow floral Erdem dress at a reception dinner at British Ambassador David Cairns' residence in Stockholm, Sweden, on Jan. 30.
Kate was ready for spring when she visited the Royal Society of Medicine in London, England, on March 20. For the occasion, the eight-months pregnant royal donned a mint green Jenny Packham coat that connected with a bow at the collar over a sky blue dress and beige suede heels.
St. Patrick's Day Darling
Happy St. Patrick's Day! The soon-to-be mom of three stunned in an outfit perfect for the holiday: an emerald green Catherine Walker Coat -- which she also wore while visiting Scandinavia earlier this year -- and a matching Gina Foster hat that she paired with black gloves, tights and heels.
The Duchess and Duke of Cambridge wore matching navy ensembles while attending the 2018 Commonwealth Day service at Westminster Abbey in London on March 12. Kate rocked a favorite Beulah London wool coat with a trapeze cut, accessorizing with a matching Lock & Co. hat, suede Jimmy Choo box clutch and Rupert Sanderson pumps.
Long Sleeves and Lace
Kate stepped out in London on March 7 in a recycled long-sleeved blue maternity dress with lace detailing and black piping by Seraphine Marlene, a look she wore on the Royal Tour of Sweden and Norway just one month earlier. She has worn blue maternity clothes quite a bit during her third pregnancy, prompting many to speculate whether she might be having another little boy.
On March 6, the Duchess of Cambridge visited the Pegasus Primary School in Oxford, England, in a white JoJo Maman Bébé coat with a matching dress underneath and olive-colored heels.
Festive in Floral
Middleton visited the National Portrait Gallery in London on Feb. 28 in a black floral frock by Orla Kiely, which she paired with blush suede heels, amethyst-and-pink tourmaline Kiki McDonough earrings and a blush Jimmy Choo clutch.
The 36-year-old royal looked beautiful for her Feb. 27 outting, donning a stunning blue Jenny Packham dress and coat. She completed her chic look with suede Jimmy Choo heels, matching jewels from Tanzanite and G. Collins & Sons. and a clutch by Stuart Weitzman.
Lovely in Lace
Kate hosted the Commonwealth Fashion Exchange reception at Buckingham Palace on Feb. 19. The brunette beauty arrived wearing a black-and-white floral print Erdem lace dress with black heels.
Red Carpet Ready
The seven-month pregnant Duchess of Cambridge looked exquisite at the 2018 BAFTAs, Britain's equivalent to the Oscars, on Feb. 18. The expecting mother donned a dark green Jenny Packham gown with cap-sleeves and a black ribbon to accentuate her baby bump. Kate accessorized her regal look with emerald and diamond earrings and a matching necklace.
On Feb. 7, the Duchess turned heads in a royal blue Goat coat that perfectly matched her engagement ring and earrings while visiting the opening of the Action on Addiction Community Treatment Centre in Wickford, England. Middleton spiced up the outfit with sheer black pantyhose and black high heels.
Kate was glowing in a burgundy double-breasted Dolce & Gabbana coat with a TiMo dress, Tod's suede block heels and dark stockings. She also carried a black Mulberry Bayswater clutch while in Norway on Feb. 2.
Regal and Ravishing
The Duchess stunned in pale pink caped Alexander McQueen gown with silver rhinestone appliques on the shoulders at an official dinner at Crown Prince Haakon and Crown Princess Mette-Marit's Royal Palace in Norway on Feb. 1.
Cozy and Chic
On Feb. 1, the brunette beauty braved the cold in Oslo by stepping out in a blue Catherine Walker & Co. overcoat, tall boots, a brown fur hat and matching gloves.
While celebrating Swedish culture at the Fotografiska Gallery in Stockholm, Sweden on Jan. 31, the third-time mom to be covered her burgeoning baby bump in a blue and white floral print velvet dress by London-based designer Erdem.
Channeling Princess Diana
During day two of her royal tour of Sweden with Prince William on Jan. 31, Kate seemingly took a style cue from her husband's late mother in a custom-made red-and-white houndstooth coat by Catherine Walker.
Kate sported a bright yellow floral Erdem dress at a reception dinner at British Ambassador David Cairns' residence in Stockholm, Sweden, on Jan. 30.
For an outing with local children at the Reach Academy in London on Jan. 10, Kate recycled a pretty blue-and-green floral Seraphine dress, which she wore almost exactly three years earlier while pregnant with daughter Charlotte, and navy blue pumps.
The Duchess of Cambridge looked amazing at Christmas services in the English countryside on Dec. 25, 2017. The pregnant royal donned a tartan Miu Miu coat with a black fur collar and double row of gold buttons. She paired the look with a festive black fur hat, stockings and block-heeled pumps.
Remembering the Fallen
Though she was stepping out for a sad occasion -- the memorial service for victims of the Grenfell Tower tragedy -- the pregnant royal still looked chic in a navy Carolina Herrera coat. She wore the hue from head to toe, including her hat, gloves, clutch, stockings and heels.
The expectant royal topped her all-black ensemble -- which included a flowy dress, stockings, block heels and a clutch -- with a wool tweed bouclé maternity coat from Seraphine that featured a touch of sparkle, frayed trim and black ribbon detailing while attending the "Magic Mums" Community Christmas Party at Rugby Portobello Trust in London, England, on Dec. 12.
The Duchess of Cambridge covered up a cherry red dress with a long, belted gray coat for a "Stepping Out" session with Prince William at Media City in Manchester, England, on Dec. 6.
Polka Dot Princess
Just one day after her brother-in-law, Prince Harry, and Meghan Markle confirmed their engagement, the Duchess of Cambridge stepped out in a pretty black-and-white polka dot Kate Spade dress and red heels for an appearance at The Foundling Museum in London, England, on Nov. 28.
She's Got the Baby Blues
Kate sparkled in an embellished blue Jenny Packham gown while attending the Royal Variety Performance with husband Prince William at London's Palladium Theatre on Nov. 24. She wore her hair in soft waves and accessorized the glamorous dress with a small clutch and her sapphire engagement ring.
The pregnant Duchess of Cambridge joined her husband at the Jaguar Land Rover's Solihull manufacturing plant in Birmingham, England, on Nov. 22. She was clad in a black peacoat with gold accents, matching tights and knee-high boots.
The stunning Duchess of Cambridge covered her baby bump in a chic black velvet Catherine Walker & Co Caressa coat dress, complete with glass-and-silver Swarovski buttons -- at the Royal Festival of Remembrance at Royal Albert Hall in London on Nov. 11. Middleton, who is expecting her third child with Prince William next year, accessorized the look with black pumps and a red paper poppy to honor fallen troops.
The Duchess of Cambridge looked pretty in pink in a '60s-inspired dress with daisy embroidery and black piping when she made a surprise appearance at Paddington Station with husband Prince William to meet children connected with a few of the different charities she supports. Kate and William, who are already parents to 4-year-old son George and 2-year-old daughter Charlotte, are expecting their third child next year.
Pretty in Pink
The Duchess of Cambridge sported a hot pink coat at an event supporting development opportunities for young people in South London on March 27, 2015. Three years later, she wore the same bright jacket again during a public outing in Coventry, England, with husband Prince William on Jan. 16, 2018.
Polka Dot Princess
Kate sported a black-and-white printed dress on her visit to Resort Studios in Cliftonville on March 11.