There are plenty of female celebrities who welcomed babies this year, and a whole new crop of celebrity moms  who had the pleasure of celebrating Mother's Day  for the very first time back in May. Stars like Kerry Washington, Eva Mendes , and Mila Kunis  brought beautiful baby girls into the world, while Olivia Wilde , Kelly Rowland, and Gwen Stefani  added baby boys to their families. Scroll through to see which famous ladies welcomed new additions in 2014, and check out the stars who are still waiting for their bundles of joy  to arrive!
Source: Getty / Astrid Stawiarz, Handout, Jason Merritt 
Kourtney and her boyfriend Scott Disick welcomed their third child, a baby boy, in December. Kourtney confirmed her third pregnancy  on an episode of Keeping Up With the Kardashians earlier in the year.
It was announced in May that Hayden was expecting her first child  with fiancé Wladimir Klitschko. The couple welcomed their baby girl, Kaya, in December.
Rachel Bilson  and her longtime love, Hayden Christensen , welcomed a baby girl in November. They named their daughter Briar Rose, a nod to the 1959 Disney animated film Sleeping Beauty.
Kelly Rowland welcomed her first child, a baby boy named Titan Jewell Witherspoon, in November. It's the first child for Kelly and her husband, Tim Witherspoon, who tied the knot in May.
Kerry Washington and her husband, former San Francisco 49ers cornerback Nnamdi Asomugha, welcomed their daughter, Isabelle, in April.
Olivia gave birth to son Otis Alexander Sudeikis — the first child for her and fiancé Jason Sudeikis — in April.
Eva Mendes  made headlines when she and boyfriend Ryan Gosling  added a baby girl to their family in September.
Scarlett Johansson  and her fiancé, French journalist Romain Dauriac, became first-time parents with the birth of their daughter Rose in August.
Princess Charlene of Monaco became a mom for the first time when she and Prince Albert welcomed twins in December. The couple announced that they were expecting back in May, and their new additions, a baby boy and a baby girl, are named Jacques and Gabriella.
Emily became a mom for the first time in February, when she and husband John Krasinski  welcomed daughter Hazel.
Lindsay Price  and her husband Curtis Stone welcomed their second son, Emerson Spencer, in September.
Amanda surprised everyone at the Emmys in August when she hit the red carpet sporting a bump . In December, she gave birth to a baby boy, her third child with husband David Benioff.
The Gone Girl actress and her boyfriend welcomed their second child, a baby boy, in December. They are already parents to son Solo.
Jimmy Fallon  and his wife, Nancy Juvonen, welcomed their second daughter, Frances Cole Fallon, via surrogate in December. The baby girl joins the couple's 1-year old daughter Winnie.
Jenna Fischer and her husband, Lee Kirk, welcomed their second child in May, announcing, "We are pleased to announce the birth of our daughter Harper Marie Kirk." Baby Harper joined the couple's 2-year old son, Weston.
Mila Kunis  and fiancé Ashton Kutcher  became first-time parents in October with the birth of their daughter, Wyatt Isabelle Kutcher.
In March, Gwen Stefani  and Gavin Rossdale  welcomed their third son Apollo to the world, joining the couple's older boys, Kingston and Zuma.
Ginnifer Goodwin  and Josh Dallas welcomed their first child, a son they named Oliver, in June.
Ciara gave birth to son Future Zahir Wilburn in May. It's the first child for the singer and her ex-fiancé, rapper Future, though Future has three other children from previous relationships.
Megan gave birth to her second son, Bodhi , in February. She and husband Brian Austin Green  are already parents to Noah, who was born in September 2012.
Emma Heming and Bruce Willis , who are already parents to 2-year-old Mabel, welcomed their daughter Evelyn Penn in May.
Kelly Clarkson  gave birth to her first child, daughter River Rose, with husband Brandon Blackstock in June.
Justin Bartha  and his wife, Lia Smith, welcomed their first child in April. The couple named their baby daughter Asa  Charlotte.
Chelsea Clinton became a mom for the first time when she and husband Marc Mezvinsky welcomed daughter Charlotte Clinton Mezvinsky in September.
Christina  Ricci and her husband, James Heerdegen, welcomed a baby boy in August but have yet to announce the little guy's name.
Christian Bale 's wife, Sibi Blazic, gave birth to the couple's second child in August. The baby was reportedly a boy, though the name and actual date of birth has yet to be confirmed.
Stacy Keibler's baby daughter, Ava Grace Pobre, was born in August. Ava is the first child for Stacy and her husband Jared Pobre.
Victoria's Secret Angel Doutzen Kroes became a mom for the second time when she and her husband, Sunnery James, welcomed a daughter they named Myllena Mae. The couple is already parents to 3-year old son Phyllon.
Kimberly Van Der Beek
James and Kimberly Van Der Beek welcomed their third child, daughter Annabel, in January.
Drew and her husband Will Kopelman welcome their second child, daughter Frankie, in April. Baby Frankie joined her big sister, 2-year old Olive.
Alyssa Milano  and her husband, David Bugliari, welcomed their second daughter Elizabella Dylan Bugliari in September.
In October, Grey's Anatomy star Ellen Pompeo  announced that she and husband Chris Ivery welcomed a daughter via surrogate — the baby girl, Sienna May Ivery, joins big sister Stella.
Carson Daly's fiancée Siri Pinter gave birth to the couple's third child, daughter London Rose, in August.
The rapper gave birth to her first child, daughter Royal Reign, in June. Baby Royal's father is reportedly NYC-based rapper Mr. Papers, though Kim has yet to confirm it publicly.
Jenny, who is married to actor Jason Biggs, gave birth to the couple's son, Sid, in February.
Source: Instagram user jennyandteets2 
Molly McNearney and husband Jimmy Kimmel welcomed their first child together, a baby girl they named Jane, in July.
Today show cohost Savannah Guthrie and her husband Mike Feldman welcomed their first child, daughter Vale, in August.
Idris Elba welcomed his son, Winston Elba, with girlfriend Naiyana Garth in April.
Former Smash star Megan Hilty gave birth to daughter Viola Philomena in September. Viola is the first child for Megan and her husband, Brian Gallagher.
Thandie Newton  and her husband Ol Parker welcomed their son, Booker Jombe, in March. Thandie gave birth to her baby boy at home in London, as she did with her other two children, daughters Nico and Ripley.
Elsa Pataky gave birth to twin boys, Sasha and Tristan, in March. She and husband Chris Hemsworth are also parents to daughter India Rose.
Simon Cowell 's girlfriend, Lauren Silverman, gave birth to their son Eric in February.
Danielle Jonas and husband Kevin welcomed daughter Alena in February.
Christina  Aguilera and her fiancé Matthew Rutler welcomed a daughter, Summer Rain, in August. It's the first child for Matthew and the second for Christina — she's a mom to 6-year old son Max Bratman.
Kristin Cavallari  and her husband Jay Cutler welcomed their second son, Jaxon Wyatt Cutler, in May.
Kendra and her husband, Hank Baskett, welcomed daughter Alijah Mary Baskett in May.
Pete Wentz  became a dad for the second time when his fiancée, Meagan Camper, gave birth to heir son Saint Lazslo in August. Pete has a 5-year old son, Bronx Mowgli, with his ex-wife Ashlee Simpson .
Producer Susan Downey gave birth to a baby girl, Avri Roel, in November. It's the second child for Susan and her husband, actor Robert Downey Jr. She joins the couple's 2-year-old son, Exton Elias Downey, and Robert's 21-year-old son, Indio, from a previous marriage.
Armie Hammer's wife Elizabeth Chambers gave birth to their first child, a baby girl they named Harper, in December.