Jessie J told the fans and boyfriend Channing Tatum about her "pain" when she learned that she could not have children.
The star opened in front of the audience and her new beau when she performed at London's Royal Albert Hall on Tuesday evening and revealed: "I was told four years ago that I can not have children."
According Metro.co.uk, she added: "I am not telling you about compassion because I am one of millions of women and men who have gone through this and will go through it.
"It can not be something that defines us, but I wanted to write this song for myself in a moment of pain and sadness, but also to give me joy, give other people something they can listen to at the moment when it really will happen.
"So if you've ever experienced something with this or seen someone else go through it or have lost a child, then know that you are not alone in your pain and think about you when I sing this song."
Jessie always wanted children and talked Evening Standard in 2014, that "it was always beaten up".
She said: "I do not know why so much has happened, I want to be my parents in 34 years.
"They have been married for 36 years. I want to live up to 100 years and see how my children's children grow up …
"I would be a hard love, a hundred percent, I mean words and actions, I want to be the best mom, I would cook all my things at home."
Channing revealed that he is excited about Jessie's girlfriend after seeing her show in London with a sweet post on social media.
The news that Channing is dating Jessie appears after his ex-wife, Jenna, informed the fans through the Instagram that separates them.
Channing and Jenna, who have been married for nine years, announced their decision in April.
Channing was spotted at a Jessie concert at The Wiltern in LA, earlier this month.
He took his five-year-old daughter Everly with him, suggesting that their affair was serious. They talked about confidential information People: "Channing is like her biggest fan. She's flying all over the US to take part in her concerts.
"She likes to have fun. It's an exciting time for both of them."
This story first appeared in The Sun and was published here with permission.