The singer, who performed in front of Tulisa and Tinie Tempah at the Judges' Houses stage of the competition last night, told The People about her relationship with long-term partner Heba Elgam, saying she is her first "true love".
Ellis said: "We are a very happy little family. Heba was my first true love but she isn't the only girl I've been out with. Me and Heba have been together for about six years, but before I met her I got pregnant."
The 25-year-old explained that her daughter Caiden boasts about having "two mummies" in the playground and that Caiden's biological father Jonni is a big part of their lives.
She said: "The pregnancy was a little bit unexpected. Nobody plans to have a kid at 19. The guy was one of my best friends, we were close and it just happened.
"When I got pregnant I felt I was ready but I didn't want to be pushing him.
"We both appreciate what we do for our daughter and that is the best way to get through this kind of relationship.
"Heba and I both get on really well with Caiden's dad and we have great relationships. He lives up North but we go up there every other month. We have all gone on holidays together but when Caiden is with her dad we let her have daddy time."
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