The EastEnders star and her husband Matt Kay have welcomed a baby girl on Friday July 12th.
According to OK! magazine the couple are: "Over the moon and filled with joy."
The 31-year-old actress has spoken publicly about suffering two miscarriages in the past, and has revealed she thought she was having a third miscarriage during the early stages of her pregnancy.
Turner - famous for playing Albert Square's Stacey Slater on the BBC soap - told This Morning she had been cautious about her fully acknowledging her pregnancy right up until 20 weeks.
Prince Harry meets supporters of the Royal British Legion's London Poppy Day appeal before getting on board the poppy bus at Buckingham Palace in London, the 1960s Routemaster bus is carrying war veterans and celebrity supporters including Joss Stone (right), Barbara Windsor (second left) and Lacey Turner (left)around London and will later meet the Prime Minister at 10 Downing Street.
Lacey Turner attending the National Television Awards 2018 held at the O2, London. Photo credit should read: Doug Peters/EMPICS Entertainment
Danny Dyer with Lacey Turner in the press room who won the Best Serial Drama Performance Award for her role as Stacey Slater in Eastenders at the National Television Awards 2017, held at The O2 Arena, London. PRESS ASSOCIATION Photo. Picture date: 25th January, 2017. See PA Story SHOWBIZ NTAs. Photo credit should read: Ian West/PA Wire
James Bye, Lacey Turner and Davood Ghadami attending the British Soap Awards 2017, held at the Lowry Theatre, in Salford, Manchester. Photo Copyright should read Doug Peters/EMPICS Entertainment
EDITORS NOTE GESTURE (left to right) Scott Maslen, Emma Barton, Luisa Bradshaw-White, Lacey Turner and Riley Carter Millington arriving for the TV Choice Awards 2016 held at The Dorchester Hotel, Park Lane, London. PRESS ASSOCIATION Photo. Picture date: Monday September 5, 2016. See PA story SHOWBIZ TVChoice. Photo credit should read: Daniel Leal-Olivas/PA Wire
Lacey Turner in the press room with the Best Serial Drama Performance Award for her role as Stacey Slater in Eastenders at the National Television Awards 2017, held at The O2 Arena, London. PRESS ASSOCIATION Photo. Picture date: 25th January, 2017. See PA Story SHOWBIZ NTAs. Photo credit should read: Ian West/PA Wire
Lacey Turner attending the British Soap Awards 2016 at the The Hackney Empire, 291 Mare St, London.
Lacey Turner arriving at A Night of Heroes : The Sun Military Awards 2014, Greenwich Maritime Museum, London.
TV Soap of the Year Sponsored by Assurant Solutions winners, Eastenders' Riley Carter Millington, Danny-Boy Hatchard, Lin Blakley, Diane Parish, Lacey Turner, Roger Sloman and Neil Stuke in the press room at the 2016 Television and Radio Industries Club Awards, Grosvenor House, Park Lane, London. PRESS ASSOCIATION Photo. Picture date: Tuesday March 8, 2016. Photo credit should read: Ian West/PA Wire
Actresses Barbara Windsor (centre right) and Lacey Turner (centre left) join Military personnel in meeting Prime Minister David Cameron to mark London Poppy Day.
Lacey Turner and Louie Spence backstage at the National Television Awards 2011, the O2 Arena, North Greenwich, London.
Lacey Turner on stage collecting the award for Best Soap Performance during the 2011 National Television Awards at the O2 Arena, London.
EMBARGOED TO 0001 WEDNESDAY DECEMBER 15 Actress Lacey Turner promotes the Royal Mail's latest recommended posting dates of 18th December for 2nd Class Mail, and 21st December for 1st Class Mail, in central London.
Lacey Turner and Gillian Wright arriving at The TV Choice Awards, the Dorchester Hotel, Park Lane, London.
Gillian Wright, Laurie Brett, Lacey Turner And Barbara Windsor during the Phillips BAFTA Television Awards 2010 at the London Palladium, London
Gillian Wright, Charlie Clements and Lacey Turner arriving for the 2010 British Soap Awards at the ITV Studios, South Bank, London.
Lacey Turner with the award for Serial Drama Performance and Bradley Walsh, at the National Television Awards 2010, at the 02 Arena, London.
Lacey Turner with the Best Actress award at the 2009 Inside Soap Awards at Sketch, Conduit Street, London.
Lacey Turner with the awards for Best Actress and Best Couple at the 2008 Inside Soap Awards at Gilgemesh, The Stables, Chalk Farm Road, Camden, NW1.
EastEnders' Jake Wood and Lacey Turner with the Best Storyline award at the British Soap Awards 2008 at BBC Television Centre, Wood Lane, London, W12. PUBLICATION OF THIS IMAGE AND WINNER RESULTS, IN WHATEVER MEDIUM, WHETHER PRINT, BROADCAST OR ONLINE IS UNDER STRICT EMBARGO TIL 00:01 GMT SUNDAY 4th MAY 2008.
Lacey Turner at the Inside Soap Awards 2007, at Gilgamesh restaurant in Camden, London.
EMBARGOED UNTIL 00:01 SUNDAY MAY 25 2007. Eastenders actress Lacey Turner with the award for Best Dramatic Performance, at the BBC Television Centre in central London. PRESS ASSOCIATION Photo.
Barbara Windsor (left) and Lacey Turner at the British Academy Television Awards, held at the London Palladium, central London. PRESS ASSOCIATION Photo. Picture date: Sunday 20 May 2007. Photo credit should read: Yui Mok/PA Wire
Lacey Turner with her awards for Best Actress and Best Couple (shared with Charlie Clements).
Louisa Lytton and Lacey Turner in the press room.
EMBARGOED TIL 0001 SUNDAY 21 MAY 2006.
EastEnders (Best British Soap) Louisa Lytton (L, Sexiest Female), Ross Kemp (Best Actor) and Lacey Turner (Best Actress) at the British Soap Awards, from the BBC Television Centre, west London.
Louisa Lytton and Lacey Turner arriving for the National Television Awards, at the Royal Albert Hall, London. Doug Peters/allactiondigital.com
Eastenders cast members Louisa Lytton (L), Joe Swash and Lacey Turner.
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She said: "I ignored it until I was 10 weeks. I thought maybe that would work.
"I got to seven weeks and thought, 'don't get excited,' then eight, nine, my family would say it was time and I told my mum not to talk about it.
"It wasn't until I got to about 20 weeks and then I thought, 'ooh, maybe we are going to have a baby.'"