The singer launched the petition after her twin babies were diagnosed with SMA1.

The Government is required to respond to the petition if it reaches 10,000 signatures.

The six-part series will follow Nelson’s life after Little Mix including her pregnancy, struggles with the pressure of fame and mental health battles.

The 32-year-old, who already shares a son named Axel with the former England midfielder, posted a black and white picture of her newborn on Instagram.

Both Thirlwall and Styles found fame on ITV reality singing competition The X Factor.