Kym Marsh was "bursting" with excitement as she shared the amazing news that her son and his fiancée were expecting their first child together.
READ: Kym Marsh explains heartbreaking reason for Morning Live absence
The former One Show star shared a photo of a calendar on the month of August, when the baby is due, alongside three photos of baby scans, a cuddly, and a white baby top that read: "Baby Cunliffe." She also shared a photo of her son, David, alongside his fiancée Courtney, holding up a photo of their baby scan.
WATCH: Kym Marsh shares advice on getting children active
In her caption, Kym enthused: "I have been bursting to share this news for AGES!!!! I'm so very proud to announce I am gonna be a 'YaYa' again!!!
WOW: Kym Marsh showcases her washboard abs in pink sports bra after 5k run
SEE: Kym Marsh stuns in a floral mini dress on her brand new show
"My wonderful son @cunliffe890 and his equally wonderful fiancée @courtneyleac are expecting their first child in August! I am so very proud of you both and I cannot wait to meet my newest grandchild!! I love you all so much."
Her fans were quick to respond to the joyous news, including friend Helen Flanagan who commented: "Congratulations darling," and another added: "Aw congratulations to you all."
A third added: "I'm ecstatic for you guys! Aww David will be the best daddy," and a fourth posted: "Ahhhhh this is amazing news."
Kym will become a grandmother for the second time
Many others simply wrote "congratulations" as they revelled in the baby news.
PHOTOS: Inside The One Show's Kym Marsh's incredible family home
READ: The one detail fans can't believe about Kym Marsh's style transformation
Kym is a mother-of-four, and shares two children, David and Emilie, who she shares with ex-partner Jack Cunliffe, and daughter Polly that she shares with ex-husband Jamie Lomas. Sadly their son, Archie, was born prematurely and died shortly after birth.
The former Coronation Street actress is already a grandmother after her daughter Emilie welcomed a son in 2019.
The star's firstborn will become a dad for the first time
The happy news comes after a difficult year for the presenter as her father, Dave was diagnosed with prostate cancer.
SEE: Kym Marsh shocks fans with the perfect summer mini dress - and we're in love
MORE: Kym Marsh's fans are all saying the same thing about her bargain ASOS dress
Appearing on Morning Live, the 45-year-old broke down in tears after watching a clip with her dad, 76, where they spoke about his battle with terminal prostate cancer.
After the show, Kym tweeted: "Thank you so much for all of your very kind messages of support today about my brave and wonderful daddy @Davestheman113 and his fight with prostate cancer.
Make sure you never miss a story! Sign up to our newsletter to get all of our celebrity, royal and lifestyle news delivered directly to your inbox.