Now that Prince William and Duchess Kate's third baby — a boy, Prince Louis — has arrived, we thought we'd take a look back at the Duchess of Cambridge's chic maternity style … starting with this cream colored GOAT coat she wore while visiting the SportsAid center at the Copper Box Arena in London on March 22, 2018. Duchess Kate wore it over a Hobbs printed top, black skinny jeans and pumps for her final day of public engagements before starting maternity leave. Now keep reading for more of Kate Middleton's maternity looks during her last pregnancy…
Duchess Kate stunned in this mint green Jenny Packham look while visiting the Royal Society of Medicine in London on March 21, 2018.
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Duchess Kate rocked this holiday-themed look at the annual Irish Guards St. Patrick's Day Parade at the Cavalry Barracks in Hounslow, England, on March 17, 2018. Ever practical, she's worn the fur-trimmed Catherine Walker coat and matching green headpiece by Gina Foster before.
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Duchess Kate attended the Commonwealth Day observance service at Westminster Abbey in London on March 12, 2018, wearing this tonal blue look: a coat and dress by Beulah London and a wide-brimmed hat by Lock & Co.
Duchess Kate looked happy and confident wearing this gorgeous blue Seraphine dress at the opening of the new Place2Be Headquarters in London on March 7, 2018.
Duchess Kate arrived to an event celebrating the Family Links Charity in Oxford, England, on March 6, 2018, rocking this gorgeous cream-colored coat dress by designer Jojo Maman Bebe.
Gorgeous Duchess Kate headed into the National Portrait Gallery in London on Feb. 28, 2018, wearing this floral Orla Kiely dress with velvet detailing.
Duchess Kate appeared happy and relaxed in this blue Jenny Packham look while visiting the Royal College of Obstetricians and Gynaecologists in London on Feb. 27, 2018.
Duchess Kate wore a dark teal military-style coat by Dolce & Gabbana while visiting a fire station in Sunderland, England, on Feb. 21, 2018.
Duchess Kate looked like a picture of chic maternity style in this gorgeous blue-and-black Erdem frock while meeting with Sophie, Countess of Wessex, at the Commonwealth Fashion Exchange Reception at Buckingham Palace in London on Feb. 19, 2018. Erdem has long been a favorite designer for members of the royal family.
Duchess Kate opened the Action on Addiction Community Treatment Centre in Wickford, England, wearing a warm blue GOAT coat on Feb. 7, 2018.
Duchess Kate continued her love affair with tailored buttoned coats — this wine-colored one is by Dolce & Gabbana — while arriving at the Hartvig Nissen School during an official visit to Oslo, Norway, on Feb. 2, 2018.
Duchess Kate made sure to dress appropriately in an orange-and-white snow jacket by Norwegian brand KJUS while attending an event organized by the Norwegian Ski Federation in Oslo, Norway, on Feb. 2, 2018.
Duchess Kate wowed EVERYBODY when she arrived arm-in-arm with King Harald of Norway in this stunning blush-colored Alexander McQueen confection for an official state dinner at the Royal Palace in Oslo on Feb. 1, 2018.
Duchess Kate wore Erdem again — this time a blue patterned velvet dress — to an evening reception to celebrate Swedish culture at the Fotografiska Gallery in Stockholm during her and Prince William's official royal tour of Sweden on Jan. 31, 2018.
Duchess Kate wowed in this blue Seraphine dress while making a speech at London's Roe Green Junior School on Jan. 23, 2018, to launch a mental health program for students as part of the Heads Together campaign. She accessorized with navy blue heels and a blue tanzanite and diamond pendant and earrings from G. Collins & Sons.
Duchess Kate arrived for her Jan. 23, 2018, visit to London's Roe Green Junior School in a blue coat by Sportmax (she's worn it before!) with a complementary printed scarf by Beulah London.
On Jan. 17, 2018, Duchess Kate headed into the Bond Primary School in London to see the work of the Wimbledon Junior Tennis Initiative — and she and her bump were clearly dressed for a sporty afternoon.
Duchess Kate visited Great Ormond Street Hospital in London on Jan. 17, 2018, wearing an orange-red Boden coat that showed off her growing baby bump.
Duchess Kate was spotted visiting the city of Coventry, England, on Jan. 16, 2018, wearing a bright pink Mulberry double-breasted coat with Tod's heels and Cornelia James gloves. She also wore the same coat while pregnant with Princess Charlotte.
Duchess Kate visited England's Reach Academy Feltham sporting a brass-buttoned navy overcoat on Jan. 10, 2018.
Under her blue coat? Duchess Kate wore this flirty Seraphine Florrie floral-print maternity dress while visiting the Reach Academy Feltham on Jan. 10, 2018.
Prince Philip, Prince William and Duchess Kate attended Sunday services at St. Mary Magdalene Church in Sandringham, England, on Jan. 7, 2018. The future queen of England opted for a brown coat with a furry hat for the religious outing.
Duchess Kate stunned in a drool-worthy tartan-print Miu Miu coat with a velvet collar for Christmas Day church services alongside Prince William and future sister-in-law Meghan Markle in Sandringham, England, on Dec. 25, 2017.
Prince William, Duchess Kate, Prince George and Princess Charlotte posed at Kensington Palace for their annual Christmas card wearing coordinating shades of blue. The gorgeous family shot was released on Dec. 18, 2017.
Duchess Kate visited the Rugby Portobello Trust in London on Dec. 12, 2017, sporting a wine-colored coat dress.
Clad in a black-and-white plaid coat, Duchess Kate headed to the Children's Global Media Summit at Manchester Central Convention Complex in Manchester, England, on Dec. 6, 2017.
Duchess Kate rocked this $620 red Goat Elodie dress with opaque tights while attending the Children's Global Media Summit at the Manchester Central Convention in Manchester, England, on Dec. 6, 2017.
Duchess Kate wore a classic Barbour wax jacket when she visited London's Robin Hood Primary School to celebrate 10 years of the Royal Horticultural Society campaign for school gardening on Nov. 29, 2017.
Duchess Kate was snapped visiting London's Foundling Museum wearing a high-waisted Kate Spade frock on Nov. 28, 2017.
This icy blue Jenny Packham frock looked great on Duchess Kate as she headed into the Royal Variety Performance at London's Palladium Theatre on Nov. 24, 2017.
Duchess Kate was all smiles in a black coat with white trim as she visited the Jaguar Land Rover's Solihull manufacturing plant in Birmingham, England, on Nov. 22, 2017.
What do you wear to dance with Paddington Bear? A pale pink Orla Kiely shift dress sounds appropriate! Duchess Kate took a turn with the beloved children's character at the opening of the new Paddington Station at the Charities Forum Event in London on Oct. 16, 2017.