Celebs Expecting Babies in 2018

It's still early in the year, but we already know about dozens of celebrity couples — from Khloe Kardashian and Tristan Thompson to Prince William and Duchess Kate Middleton — who are preparing to welcome little bundles of joy into the world over the next few months. Click through to see which famous pairs are expecting babies in 2018.

Jordin Sparks and Dana Isaiah: In November 2017, the American Idol alum revealed that she had married boyfriend Dana Isaiah and was pregnant with their first child. Later that month, she and Isaiah shared the sex of the baby. "IT'S A BOY!!! We have so much to be thankful for and this is definitely at the top of the list!" she captioned an Instagram post at the time. (Photo via Rob Kim/Getty Images)

Robin Thicke and April Love Geary: "Robin and I are very excited to share with you all that we're having a baby," Geary captioned a photo of her ultrasound on Instagram, adding that her due date is March 1, the birthday of Thicke's later father, Alan Thicke. (Photo via Luca Teuchmann/WireImage)

Chip and Joanna Gaines: Three months after announcing the end of their HGTV show, the Fixer Upper stars announced a new beginning for their family. The couple are expecting their fifth child in 2018, to join kids Drake, 12, Ella, 11, Duke, 9, and Emmie Kay, 7. (Photo via Daniel Zuchnik/WireImage)

Jamie-Lynn Sigler and Cutter Dykstra: The Sopranos actress took not one, not two, but five pregnancy tests — all of which she later posted to Instagram to announce her pregnancy in July. She later enlisted her son, Beau Kyle, to help reveal the baby's sex. Little Beau will welcome a little brother in 2018! (Photo via Rachel Murray/Getty Images for MGA Entertainment)

Matt and Angela Lanter: The Timeless actor and his wife announced her pregnancy in August. They also launched a podcast, Hello Bump, about their journey to parenthood. On one episode in September, they revealed that they're expecting a daughter. (Photo via Tasos Katopodis/Getty Images for Sony Pictures Television)

Prince William and Duchess Kate Middleton: Kensington Palace announced in September that the Duchess of Cambridge was pregnant with her third child. As with her first two pregnancies with Prince George and Princess Charlotte, she suffered hyperemesis gravidarum in her first trimester. She's due to give birth in April. (Photo via Chris Jackson/Getty Images)

Michael Phelps and Nicole Johnson: The Olympian and the former Miss California USA will welcome a sibling for son Boomer this year. (Photo via Matt Winkelmeyer/Getty Images)

Adam Levine and Behati Prinsloo: Less than a year after she gave birth to their daughter, Dusty Rose, the model announced "round two" on Instagram. In November, the Maroon 5 rocker shared that they're having another girl, and that Prinsloo "wants like 100 babies." (Photo via Jason Merritt/Getty Images)

Kanye West and Kim Kardashian West: After months of speculation, the Keeping Up With the Kardashians star confirmed in November that she and West would welcome their third child via surrogate in 2018. "Anyone that says or thinks it is just the easy way out is just completely wrong. I think it is so much harder to go through it this way, because you are not really in control," she told Entertainment Tonight of surrogacy. (Photo via Jamie McCarthy/Getty Images)

Jeffrey Dean Morgan and Hilarie Burton: The One Tree Hill alum debuted her baby bump at the 2017 Emmys in September. She and Morgan, who have been married since 2014, are already the parents of a little boy, Augustus. (Photo via Dimitrios Kambouris/Getty Images)

Aaron and Lauren Paul: The Breaking Bad star shared the news of his wife's pregnancy on Instagram in September 2017, posting a photo of her showing off a tiny bump. "Words can’t express how excited I am that this little one has entered our lives. Just thought it was time I would share this beautiful news with all of you," the actor wrote. (Photo via Pascal Le Segretain/Getty Images)

Eric and Jessie James Decker: The reality stars will welcome a baby sibling for daughter Vivianne Rose and son Eric Thomas this year. (Photo via Dave Mangels/Getty Images)

Sam Claflin and Laura Haddock: The Guardians of the Galaxy actress debuted her baby bump at a solo event in October. She and the Me Before You star previously welcomed a son in December 2015. (Photo via Stuart C. Wilson/Getty Images for Paramount Pictures)

Eddie Redmayne and Hannah Bagshawe: A spokesperson for the Fantastic Beasts actor confirmed Bagshawe's pregnancy in November 2017, just a little over a year after she gave birth to their first child, daughter Iris. (Photo via Chris Jackson/Getty Images)

Alec and Hilaria Baldwin: Married since 2012, the couple are expecting their fourth child together, a baby boy, in 2018. They're already the parents of Leo, Rafael, and Carmen. The 30 Rock alum also shares daughter Ireland Baldwin with ex Kim Basinger. (Photo via Lars Niki/Getty Images for Hamptons International Film Festival)

Sean and Catherine Lowe: The Bachelor stars, who met on season 17 of the ABC series, are expecting their second child in 2018. The little one will join big brother Samuel. (Photo via Eugene Gologursky/Getty Images for Gotham Magazine)

Tia Mowry and Cory Hardrict: The Sister, Sister alum announced her pregnancy in November 2017. She and Hardrict already have a son, Cree. (Photo via Jamie McCarthy/Getty Images for EJAF)

Miranda Kerr and Evan Spiegel: Six months after their wedding, the model confirmed via her rep that she and the Snapchat founder were looking forward to welcoming their first child. She shares son Flynn with ex-husband Orlando Bloom. (Photo via Tommaso Boddi/Getty Images for Baby2Baby)

Ali Fedotowsky and Kevin Manno: The Bachelorette alum and her husband are expecting their second child in May 2018. The little one will join big sister Molly, whom the couple welcomed in July 2016. (Photo via Alberto E. Rodriguez/Getty Images for Celebrity Red CARpet Safety Awareness)

Pete Wentz and Meagan Camper: The Fall Out Boy bassist announced on New Year's Day that he and his longtime girlfriend are expecting their second child, a baby girl. They also have a son, Saint, and Wentz shares another son, Bronx, with his ex-wife, Ashlee Simpson. (Photo via Michael Kovac/WireImage)

America Ferrera and Ryan Piers Williams: The Superstore actress shared her happy news on New Year's Eve. "We're welcoming one more face to kiss in 2018," she captioned a photo of herself and her husband holding a tiny onesie. (Photo via Jason Merritt/Getty Images)

Jamie Lynn Spears and Jamie Watson: "Looks like we are starting off 2018 with another big milestone. Sooo happy to announce that Maddie is FINALLY going to be a big sister," Spears announced on Christmas Eve 2017. This will be her first child with Watson; she welcomed Maddie with then-boyfriend Casey Aldridge when she was 17. (Photo via Jason Merritt/Getty Images)

Candice Swanepoel and Hermann Nicoli: A month after strutting her stuff down the runway at the Victoria's Secret Fashion Show, Swanepoel announced that she and Nicoli were expecting their second child. (Photo via Victor Chavez/WireImage)

Eva Longoria and Jose Baston: A rep for the actress-producer confirmed in December that she was four months pregnant with her first child. Baston also has three kids from a previous marriage. (Photo via Dave Benett/amfAR2017/Dave Benett/WireImage for amfAR)

John Stamos and Caitlin McHugh: Two months after announcing their engagement, the Fuller House star and his fiancée revealed that they were getting ready to welcome a baby, too. "I'll be a fun dad. I've been practicing for a long time," Stamos joked to People. "I've done every schtick you can do with a baby on TV … all the bits and jokes and diaper gags. I'll probably just do all that stuff." (Photo via Rachel Murray/Getty Images for mothers2mothers andThe Elizabeth Taylor AIDS Foundation)

Dwayne Johnson and Lauren Hashian: Johnson enlisted his daughter, Jasmine, to help him announce that he and Hashian would welcome their second child, another girl, in the spring of 2018. "Once again, big daddy is completely surrounded by beautiful estrogen and loving, powerful female mana," the Rock wrote. "All girls. One dude. And a boy dog. I wouldn't have it any other way." (Photo via Christopher Polk/Getty Images)

Robert Herjavec and Kym Johnson: The Shark Tank star and the Dancing With the Stars pro are set to join the Hollywood twin club in 2018. (Photo via Dave Kotinsky/Getty Images for Entertainment Weekly & People)

Coco Rocha and James Conran: The model and her husband are expecting their second child in 2018. They also share a daughter, Ioni, who helped to announce Rocha's pregnancy. (Photo via Jamie McCarthy/Getty Images for Christian Siriano)

Lin-Manuel Miranda and Vanessa Nadal: The Hamilton creator confirmed Nadal's pregnancy on Twitter after she debuted her baby bump at the 2017 London Evening Standard Theatre Awards. The couple also have a son, Sebastian. (Photo via Cindy Ord/Getty Images for Nordstrom)

Khloe Kardashian and Tristan Thompson: In December, after months of rumors and speculation, Kardashian confirmed her pregnancy by sharing a photo of her bare baby bump on Instagram. "My greatest dream realized! We are having a baby! I had been waiting and wondering but God had a plan all along," she captioned the pic. "He knew what He was doing. I simply had to trust in Him and be patient. I still at times can't believe that our love created life!" (Photo via Cindy Ord/Getty Images for Allergan)

Jim and Meghan King Edmonds: The Real Housewives of Orange County star is expecting twin boys in June 2018. She and her husband also share a daughter, Aspen. (Photo via Alberto E. Rodriguez/Getty Images for Celebrity Red CARpet Safety Awareness)

Seth Meyers and Alexi Ashe: The Late Night host announced his wife's pregnancy on a special Thanksgiving episode of his NBC show. They also have a son, Ashe. (Photo via Nicholas Hunt/Getty Images)

Chrissy Teigen and John Legend: The model and cookbook author enlisted daughter Luna's help in announcing her second pregnancy in November. (Photo via Alberto E. Rodriguez/Getty Images for NARAS)

Carly Waddell and Evan Bass: After tying the knot on TV, the Bachelor in Paradise couple returned to the small screen to make another special announcement: They're expecting their first child together, a baby girl, in February. (Photo via ABC/Paul Hebert)