Kim Kardashian steps out for dinner in sexy white number before confirming she's expecting baby No. 3

Kim Kardashian West had a reason to celebrate!

The 36-year-old reality star stepped out for dinner with friends in Los Angeles on Wednesday,  just one day before she confirmed that she was expecting baby No. 3 in a new trailer for season 14 of Keeping Up With the Kardashians. 

Kim showed off her curves at the Bel-Air restaurant in a sexy white number, accessorizing her look with a super-high silver ponytail and strappy sandals. 

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Photo: Splash News

RELATED: Kim Kardashian Continues to Speak Out Against Reports About Her Family Amid Khloe Kardashian Pregnancy News

The mother of two confirmed that she and husband Kanye West are expecting their third child via surrogate on Thursday's KUWTK promo, but she's not the only member of her family awaiting a bundle of joy. 

ET learned that 20-year-old Kylie Jenner is pregnant and expecting a baby girl with her boyfriend, Travis Scott. And on Tuesday, ET learned that 33-year-old Khloe Kardashian is pregnant with her first child with her boyfriend, Tristan Thompson. 

"It's going to be a very busy time for the Kardashian-Jenner family," a source told ET on Tuesday of the three sisters expecting babies in the new year. "Everyone is thrilled." 

See more of Kim Kardashian's most memorable looks from this year:

40 PHOTOS
Kim Kardashian out and about in 2017
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Kim Kardashian out and about in 2017
NEW YORK, NY - SEPTEMBER 09: Kim Kardashian arrives at the Alexander Wang show during NYFW on September 9, 2017 in New York City. (Photo by Pierre Suu/GC Images)
NEW YORK, NY - SEPTEMBER 09: Kim Kardashian seen on September 9, 2017 in New York City. (Photo by Team GT/GC Images)
Kim Kardashian attends Harper's BAZAAR Celebration of 'ICONS By Carine Roitfeld' at The Plaza Hotel presented by Infor, Laura Mercier, Stella Artois, FUJIFILM and SWAROVSKI on September 8, 2017 in New York City. / AFP PHOTO / ANGELA WEISS (Photo credit should read ANGELA WEISS/AFP/Getty Images)
NEW YORK, NY - SEPTEMBER 08: Kim Kardashian West is seen leaving The Plaza Hotel on September 8, 2017 in New York City. (Photo by Gilbert Carrasquillo/GC Images)
NEW YORK, NY - SEPTEMBER 08: Kim Kardashian on September 8, 2017 in New York City. (Photo by Gotham/GC Images)
NEW YORK, NY - SEPTEMBER 07: Kim Kardashian seen on the streets of Manhattan on September 7, 2017 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - SEPTEMBER 06: Kim Kardashian West is seen on September 6, 2017 in New York City. (Photo by Marc Piasecki/GC Images)
NEW YORK, NY - SEPTEMBER 06: Kim Kardashian attends the Tom Ford Spring/Summer 2018 Runway Show at Park Avenue Armory on September 6, 2017 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Tom Ford)
NEW YORK, NY - AUGUST 02: Kim Kardashian is seen walking in Soho on August 2, 2017 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK - AUGUST 01: Kim Kardashian and Kendall Jenner shop East Village thrift stores with their 2 bodyguards as Kim displays her chest in a see through tank top with army fatigue shorts on August 01, 2017 in New York, New York. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
NEW YORK, NY - AUGUST 01: (EDITORS NOTE: Image contains nudity) Kim Kardashian and model Kendall Jenner are seen walking in Soho on August 1, 2017 in New York City. (Photo by Raymond Hall/GC Images)
BEVERLY HILLS, CA - JULY 20: Kim Kardashian at BALMAIN celebrates first Los Angeles boutique opening and Beats by Dre collaboration on July 20, 2017 in Beverly Hills, California. (Photo by Donato Sardella/Getty Images for BLAMAIN)
BEVERLY HILLS, CA - JULY 20: Kim Kardashian at BALMAIN celebrates first Los Angeles boutique opening and Beats by Dre collaboration on July 20, 2017 in Beverly Hills, California. (Photo by Stefanie Keenan/Getty Images for BALMAIN)
NEW YORK - JULY 11: Kim Kardashian seen leaving a photoshoot in Gramercy Park on July 11, 2017 in New York, New York. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
NEW YORK - JULY 11: Kim Kardashian seen leaving a photoshoot in Gramercy Park on July 11, 2017 in New York, New York. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
NEW YORK - JULY 10: Kim Kardashian gets dinner at Estiatorio Milos in Mid Town Manhattan on July 10, 2017 in New York, New York. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
LOS ANGELES, CA - JUNE 20: Kim Kardashian West celebrates The Launch Of KKW Beauty on June 20, 2017 in Los Angeles, California. (Photo by Stefanie Keenan/Getty Images for Full Picture)
NEW YORK - JUNE 14: Kim Kardashian seen leaving her apartment in Soho on June 14, 2017 in New York, New York. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
NEW YORK, NY - JUNE 13: Kim Kardashian is seen walking in Soho on June 13, 2017 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - JUNE 13: Kim Kardashian and a friend seen out in Manhattan on June 13, 2017 in New York City. (Photo by Robert Kamau/GC Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Episode 14097 -- Pictured: Kim Kardashian -- (Photo by: Chris Haston/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - MAY 15: TV personality Kim Kardashian attends the 2017 NBCUniversal Upfront at Radio City Music Hall on May 15, 2017 in New York City. (Photo by Jim Spellman/WireImage)
NEW YORK, NY - MAY 15: TV personality Kim Kardashian is seen in SoHo on May 15, 2017 in New York City. (Photo by Gotham/GC Images)
NEW YORK, NY - MAY 01: Kim Kardashian attends 'Rei Kawakubo/Comme des Gar�ns:Art of the In-Between' Costume Institute Gala at Metropolitan Museum of Art on May 1, 2017 in New York City. (Photo by Jackson Lee/FilmMagic)
HOLLYWOOD, CA - APRIL 12: Kim Kardashian arrives to the Los Angeles premiere of 'The Promise' at TCL Chinese Theatre on April 12, 2017 in Hollywood, California. (Photo by Tara Ziemba/Getty Images)
WEST HOLLYWOOD, CA - APRIL 02: Kim Kardashian arrives at the Daily Front Row's 3rd Annual Fashion Los Angeles Awards on April 2, 2017 in West Hollywood, California. (Photo by Steve Granitz/WireImage)
LOS ANGELES, CA - MARCH 02: Kim Kardashian is seen on March 2, 2017 in Los Angeles, CA. (Photo by Hollywood To You/Star Max/GC Images)
NEW YORK, NY - FEBRUARY 16: Kim Kardashian is seen walking in Midtown on February 16, 2017 in New York City. (Photo by Raymond Hall/GC Images)
BEVERLY HILLS, CA - MARCH 11: Television personality Kim Kardashian speaks onstage at the Family Equality Council's Impact Awards at the Beverly Wilshire Hotel on March 11, 2017 in Beverly Hills, California. (Photo by Rich Polk/Getty Images for Family Equality Council )
NEW YORK, NY - FEBRUARY 15: Kim Kardashian is seen on February 15, 2017 in New York City. (Photo by Marc Piasecki/GC Images)
NEW YORK - FEBRUARY 14: Kim Kardashian gets lunch at the Mercer Kitchen on February 14, 2017 in New York, New York. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
NEW YORK, NY - FEBRUARY 14: Kim Kardashian is seen Soho on February 14, 2017 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - FEBRUARY 14: Kanye West and wife Kim Kardashian West are seen on February 14, 2017 in New York City. (Photo by Marc Piasecki/GC Images)
NEW YORK, NY - FEBRUARY 14: Kim Kardashian arrives at an hotel on February 14, 2017 in New York City. (Photo by Pierre Suu/GC Images)
NEW YORK, NY - FEBRUARY 13: Kim Kardashian and La La Anthony seen out in Manhattan on February 13, 2017 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK, NY - FEBRUARY 01: (L to R) Saint West, television personality Kim Kardashian West, and North West leave their Midtown Manhattan hotel on February 1, 2017 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - JANUARY 17: Kim Kardashian is seen walking in Midtown on January 17, 2017 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK - JANUARY 16: Kim Kardashian seen leaving her hotel enrought to the Set of 'Oceans 8' filming a Met Gala Scene at the 'The Met' on January 16, 2017 in New York, New York. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
LOS ANGELES, CA - JANUARY 11: Kim Kardashian and Scott Disick are seen at LAX on January 11, 2017 in Los Angeles, California. (Photo by starzfly/Bauer-Griffin/GC Images)
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