Jesy Nelson has voiced her deep-seated fears that her twin daughters may resent her in the future for not recognizing the early signs of Spinal Muscular Atrophy (SMA) sooner. In her new documentary, "Jesy Nelson: Life Changing," the singer, 35, reflects on the diagnosis of her 14-month-old twins, Ocean and Story, with SMA Type 1, a rare muscle-wasting condition that will prevent them from ever walking.

Nelson expressed her anguish over the possibility of having to explain to her daughters that their lives could have been different had the condition been identified earlier, potentially allowing for life-saving treatment. "Are they going to be mad at me that I didn't see the signs sooner and that I could have potentially given them a completely different life?" she questioned in the documentary. She articulated her struggle with the idea that her children might have been able to walk and run, stating, "That's the part that I will never be able to f*****g accept." She is committed to preventing other families from enduring similar hardships.

The singer also addressed comments suggesting her wealth would enable her to hire numerous caregivers for her children. Nelson stated her strong preference against having strangers care for her babies, explaining that due to the circumstances surrounding their birth and diagnosis, she is not yet ready to hand over their care. "I don't want to just hand them over to anyone," she said.

Nelson previously explained that she did not suspect developmental issues because doctors attributed any differences in her premature twins to their early arrival. By the time the twins were diagnosed, it was too late for treatments that could have aided their mobility.

SMA is a genetic condition affecting motor neurons, leading to progressive muscle weakness. Type 1 SMA, the most severe form, is present at birth, preventing sufferers from sitting and often resulting in death by age five. Ocean and Story were not tested for SMA at birth, as the screening is not yet routine across the UK.

Nelson has become a vocal advocate for mandatory newborn screening for SMA across the country. She recently shared a milestone moment on Instagram, posting a photo of one of her daughters sitting upright in her wheelchair without a medical tube, an achievement for children with Type 1 SMA who typically cannot sit unaided.

Last month, Nelson expressed her "heartbreak and outrage" after attending a parliamentary debate on implementing universal newborn screening for SMA in England. Despite a petition she launched garnering over 150,000 signatures, the debate concluded with a staggered rollout plan. As of October, only 72% of the country will have access to the screening, leaving the remaining 28% without it. Nelson criticized this disparity, questioning its fairness and logic. The phased introduction is based on the UK National Screening Committee's recommendation to evaluate screening effectiveness and costs. Several major cities, including Bristol, Cambridge, Leeds, Liverpool, Oxford, and Portsmouth, will not be part of the initial rollout, which will utilize seven of the NHS's 13 available testing laboratories.