The singer revealed her diagnosis earlier this month.

The 37-year-old singer revealed her diagnosis earlier this month.

The star shared that she had undergone surgery alongside raw footage of herself with her son and partner.

Posting to her 14 million Instagram followers, she wrote: "Blood warning. This post is some of the honest lows and highs of the last 48 hours."

"I will always show the good and hard bits of any journey I go through. Grateful to my doctor / surgeon and all the nurses who cared for me and all my family / friends who came to visit. I am home now, to rest and wait for my results.

"Chanan is in a nurse outfit. No no, he isn’t, but funny to imagine.

"Still hugging everyone going through something tough right now. We all got this!"

The carousel post included an array of photos, including a video that revealed she had spent six and a half hours in the hospital before being brought to theatre.

Further videos show the Price Tag singer being comforted by her partner, as well as complaining about the pain and trying to explain the healing process to her son.

During her performance at the Capital Summertime Ball last week, she told the crowd: "Today, this show is my last show before I go and beat breast cancer."

Friends and fans were quick to rush to the comments to wish the singer well.

"SO proud of you! You’re made of strong stuff my girl," commented This Morning host Rochelle Humes.

TV and radio personality Gaby Roslin said: "Sending you strength, energy and so much love you beautiful soul."

JLS star Marvin Humes added: "Ah Jess wow..these posts. I know Sky will be keeping you smiling and giving you strength..big love..you’re an absolute warrior x"