A candid new Netflix documentary covers her called-off engagement, her feud with Madonna and the making of her sixth album.

But perhaps the most heart-breaking revelation from Lady Gaga’s feature-length Five Foot Two is that the star fears she may not be able to have children as a result of her chronic pain condition, fibromyalgia, and a hip operation she had in 2013.

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The singer, 31, laid her personal and professional life bare in the insightful flick, including in a distressing scene where a tearful Gaga voices one of her worst fears – not being able to have the family she so fiercely desires.

The Born This Way hit-maker, whose real name is Stefani Germanotta, sobbed as she said: ‘I don’t even know what child birth will be like.

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‘I think I can get pregnant, I just don’t know – what are my hips going to do? I don’t f****** know.’

But the brave performer showed defiance in the face of her poor health, adding: I’m not afraid of those things.’