The Little Mix alum shared the emotional update with fans on Instagram on Saturday, March 8, days after announcing she was experiencing pregnancy "complications"

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"We honestly had no clue that this kind of thing [can happen] when you have twins," Nelson said in a candid video with boyfriend Zion Foster

Jesy Nelson is overjoyed to be expecting identical twins, but in a video, she and boyfriend Zion Foster revealed that the pregnancy has also come with some scary complications.

Twin-to-twin transfusion syndrome (TTTS) is a rare pregnancy complication in identical twins sharing a placenta, causing uneven blood flow, which can lead to severe health risks or fatal outcomes if untreated.

Former Little Mix singer Jesy Nelson is dealing with complications during her pregnancy with twins.

Former Little Mix star Jesy Nelson has said she is undergoing a procedure that will give her twins “the best chance of surviving” after learning of complications around her high-risk pregnancy. The singer,

Little Mix alum Jesy Nelson gets emotional in a heartfelt Instagram video, opening up about pregnancy complications with her twins. The 33-year-old singer and her boyfriend, Zion Foster, announced they were expecting twins in January.

Jesy Nelson's fans have rallied around the former Little Mix star after she confirmed that her unborn identical twins have a very rare life-threatening condition