Kourtney Kardashian is expecting baby number three , and at this point, the mom-to-be has her signature maternity style down to a science. Throughout all three pregnancies, Kourtney has stayed true to her trendsetting ways , keeping things glam on the red carpet with dramatic monochromatic ensembles and dresses that showcase her evolving figure. On the street, she's been all about minidresses, layering, and, of course, her best accessories: Mason and Penelope. Join us for a look at Kourtney's best maternity moments thus far.
A demure choice for the usually daring mom-to-be, Kourtney wore a chic LBD with a mesh overlay and booties for a Hollywood art gallery opening.
Kourtney dared to bare a little leg in this tunic-style embroidered minidress. Her suede booties and hat took the warm-weather look into early Fall in style.
Kourtney paired a fitted gray minidress with a plaid button-down and booties for an easy off-duty look.
Kourtney took a major fashion risk in her low-cut, boot-leg crocheted jumpsuit at an event in the Hamptons for Women's Health magazine.
More Crocheted Cool
Kourtney paired another crocheted look with a purple hat, big gold earrings, and an oversize Prada  tote.
Silvery metallic short shorts paired with a billowy silk top give a chic edge to running errands in LA.
Baby in Black
Kourtney pulled out one of her favorite pregnancy styling tricks for this look — a snug minidress topped off with an open overcoat.
Early on in her third pregnancy, Kourtney sported a floral-print jumpsuit at an Operation Shower event with her sisters.
For another successful study in monochromatic dressing, Kourtney layered a silky blush blouse with a coordinating skirt in NYC this past Summer.
A Little Leopard
The mom-to-be took a walk on the wild side in her leopard-print minidress and black coat.
Kourtney shared this snap with almost-2-year-old Penelope from her sister Kim's recent pre-wedding extravaganza in Paris. Her chic fedora was the perfect topper for the face of pure indulgence!
Source: Instagram user kourtneykardash 
While she was pregnant with baby Penelope, Kourtney attended the E! Upfronts in New York City wearing a simple-chic black Gomez-Gracia  dress and neon accessories, including Alexander McQueen  shoes and a DIY  necklace.
E! Promo Pics
For the promo photos for a new season of Keeping Up With the Kardashians, Kourtney wore a bump-hugging printed minidress.
Source: E! Online 
For boyfriend Scott Disick's restaurant opening, Kourtney wore a comfy but chic T-bags  dress and a Bottega Veneta  clutch. Her earrings were from her very own Kardashian Kollection.
For a taping of Rachael Ray  in New York, Kourtney wore a Cynthia Vincent  dress over Mason leather leggings with Christian Louboutin  pumps.
Lady in Red
In NYC while pregnant with Penelope, Kourtney wore a ladylike Pinkyotto dress, Christian Louboutin  pumps, and a Celine bag.
While shopping in NYC with Khloe and Lamar Odom, Kourtney wore a boho Tt Collection top, Alice + Olivia leggings, Chanel boots, and a Celine bag.
Kourtney wore a white and gold Raoul gown to Elton John's 2012 Oscars viewing party.
For an event in Hollywood, Kourtney went old-school with a vintage Janey Lopaty dress, vintage clutch, and brand-new Christian Louboutin  pumps.
While pregnant with Penelope, Kourtney was spotted wearing a Kardashian Kollection top, Donna Karan  leggings, Jimmy Choo  boots, her dad's vintage bolo tie, a vintage fringe bag, and a Hat Attack hat.