© Photo: Getty ImagesPrincess Charlotte Elizabeth Diana of Cambridge
Prince William and the Duchess of Cambridge welcomed their daughter, Charlotte Elizabeth Diana, on 2 May 2015.
Charlotte has a big brother, Prince George of Cambridge, who was born on 22 July 2013.
© Photo: InstagramLiberty Rose Crouch
Model Abbey Clancy and her footballer husband Peter Crouch welcomed a little girl on 1 June 2015.
The couple are already parents to four-year-old Sophia Ruby.
© Photo: InstagramRafael Thomas Baldwin
Alec Baldwin welcomed his first son with wife Hilaria on 17 June 2015.
The couple also have a two-year-old daughter, Carmen, and Alex has daughter Ireland, 20, from his previous marriage to Kim Basinger.
© Photo: InstagramJagger Snow Ross
Ashlee Simpson and husband Evan Ross welcomed a baby girl on 30 July 2015.
Ashlee also has a six-year-old son with ex-husband Pete Wentz.
© Photo: Getty ImagesChristopher Carlton Cumberbatch
Benedict Cumberbatch and wife Sophie Hunter became first time parents to a baby boy in June 2015.
The private couple have not released any photos of their son, nor have they confirmed his birth date.
© Photo: Getty ImagesEvelyn Mumford
Carey Mulligan and husband Marcus Mumford welcomed a baby girl in October 2015.
The actress has not released any photos of their daughter, nor has she confirmed her full name.
© Photo: InstagramIsaiah Michael Fisher
Country singer Carrie Underwood and her hockey playing husband Mike Fisher welcomed their first child on 27 February 2015.
Carrie has had no problem adjusting to motherhood and told Ellen DeGeneres her son was "the sweetest and smiliest baby, I think, ever."
© Photo: InstagramIoni James Conran
Coco Rocha and husband James Conran became first time parents to a little girl on 28 March 2015.
Ioni has her own Instagram account so fans can keep up with her every move.
© Photo: Getty ImagesArt O'Porter
Chris O'Dowd and wife Dawn O'Porter welcomed their first child, a baby boy in January 2015.
The pair have not released any photos of their son, but Chris couldn't resist teasing his fans on Twitter, releasing a picture of a baby with his beard and his wife's signature bob photoshopped on.
© Photo: InstagramEvangeline Lilly
The Lost actress welcomed her second child with boyfriend Norman Kalli in October 2015, but has yet to reveal the baby's name or sex.
The couple are also parents to four-year-old son Kahekili Kali.
© Photo: Getty ImagesHoney Krissy Wood
Fearne Cotton and husband Jesse Wood welcomed a baby girl on 9 September 2015.
The couple also have a two-year-old son, Rex Rayne Wood.
© Photo: InstagramCarter Bridge
The Saturdays singer Frankie Bridge welcomed a baby boy with footballer husband Wayne on 15 August 2015.
The couple also have another son, 22-month-old Parker.
© Photo: InstagramMatilda Jessica Sinclair
Helen Flanagan and footballer Scott Sinclair welcomed their first child, a baby girl, in June 2015.
The couple decided that they did not want to know the sex of their baby so they could be surprised at the birth.
© Photo: Getty ImagesMontgomery Moses Brian Baron Cohen
Sacha Baron Cohen and Isla Fisher welcomed their third child, a baby boy, on 17 March.
The couple also have two daughters, Olive, seven, and Elula, four.
© Photo: InstagramAtticus James Hallisay
Jennifer Love Hewitt welcomed a son with husband Brian Hallisay on 24 June 2015.
The pair are also parents to 22-month-old daughter, Autumn James.
© Photo: Getty ImagesJude Law
The actor welcomed a daughter with his ex-girlfriend Catherine Harding in March 2015.
Jude also has four children from previous relationships: sons Rafferty, 19; Rudy, 13 and daughter Iris, 15, with ex-wife Sadie Frost. As well as Sophia, six, with ex Samantha Burke.
© Photo: InstagramSilas Randall Timberlake
Jessica Biel and husband Justin Timberlake welcomed their first child in April 2015.
The couple have settled into parenthood with ease, with Justin saying that becoming a father is: "the most insanely, amazing, most beautiful, unbelievable thing that could ever happen to you."
© Photo: InstagramAaliyah Reign Levitas
Katherine Jenkins welcomed a daughter with her husband Andrew Levitas in September 2015.
The classical singer posted a picture of her newborn's feet on Instagram with the caption: "We are absolutely besotted with her & grateful for the beautiful blessing of this happy, healthy, little miracle."
© Photo: Getty ImagesEdie
Keira Knightley and husband James Righton became first-time parents to a little girl in May 2015.
Speaking to Elle magazine about her daughter the actress explained: "The love is astonishing. It's a very primal, primal love. That's quite extraordinary."
© Photo: InstagramEva James Jenner
Brandon Jenner - Kim Kardashian's stepbrother - and his wife Leah became first-time parents to a little girl on 22 July 2015.
Reflecting on her pregnancy the singer said: "It has without a doubt been the most profoundly beautiful time in my life but also emotionally, spiritually and physically challenging too.... and I am so grateful for every second of it."
© Photo: Getty ImagesArlo Day Brody
Leighton Meester and husband Adam Brody welcomed a little girl on 4 August 2015.
The private couple managed to keep the news of their daughter a secret for two months, which comes as no surprise as they never confirmed the Gossip Girl star's pregnancy, nor have they ever commented on their secret wedding which happened in 2014.
© Photo: InstagramSailor Gene Gardner
Liv Tyler and partner Dave Gardner welcomed a little boy on 11 February 2015 - six and a half weeks before the due date.
The Armageddon star also has a son with ex-husband Royston Langdon, 10-year-old Milo.
© Photo: InstagramRockwell Lloyd Liu
Lucy Liu welcomed a little boy via gestational surrogate in August 2015.
The Charlie's Angels star surprised her fans with the announcement, as she had not revealed she was going to become a mother.
© Photo: Getty ImagesJosey Hollis Dorsey
Naya Rivera and husband Ryan Dorsey welcomed a little boy on 17 September 2015.
The unusual name is typically a shortened version of Joseph or Josephine. In Hebrew, it means "God will add (another son)."
© Photo: InstagramBrooklyn Elisabeth Lachey
Nick and Vanessa Lachey welcomed their first daughter on 5 January 2015.
The couple are also parents to son, Camden John, three.
© Photo: InstagramSummer
Rebecca Adlington and husband Harry Needs became first-time parents to a little girl on 8 June 2015.
It comes as no surprise that the Olympic swimmer chose to have a water birth, considering how comfortable she is in the water.
© Photo: InstagramSasha Piqué Mebarak
Shakira Mebarak and Gerard Piqué welcomed their second son on 29 January 2015.
The couple are also parents to two-year-old Milan.
© Photo: InstagramTadhg John Foden
Una and Ben Foden welcomed a little boy on 2 February 2015.
The couple also have a three-year-old daughter, Aoife.
© Photo: InstagramPauline Sinclair
Vin Disel and longterm girlfriend Paloma Jiménez welcomed a little girl on 16 March 2015.
The couple, who also have a five-year-old son, Vincent, and daughter Hania, seven, chose the name Pauline as tribute to Vin's Fast and Furious co-star, the late Paul Walker.
© Photo: InstagramCy Aridio and Bowie Ezio Perego-Saldana
Zoe Saldana and husband Marco Perego welcomed twin boys on 2 January 2015.
Before the birth the multilingual couple revealed they would be raising their sons in all of the languages they speak, which means Cy and Bowie will be learning French, English, Spanish, Italian and Portuguese.
© Photo: Getty ImagesElsie Otter
Zooey Deschanel and husband Jacob Pechenik welcomed their first child in August, 2015.
Explaining the reason behind her daughter's quirky name the New Girl star told the Today Show: "We just really loved the name Elsie and we both love otters. They are very sweet and they are also smart... There are so many amazing things about otters. Who doesn't love otters?"
