The "Black Magic" hitmaker has revealed she is keen for her and her fiance to have a baby by the time she turns 24, reported Contactmusic.
When asked how old she'd want to be when she has her first child, she said, "Well, I would say 24 and that's in three years' time for me. It's still quite a while away.
"My mom was 24, though, so that's always been my ideal age."
The 21-year-old singer has been blamed for Malik's hasty departure from One Direction but she has insisted it was solely his choice.
"He's really good. Hopefully everyone understands that it was one of the hardest decisions he's ever made in his life," she said.
The pair are now looking forward to taking their time planning their wedding but the Little Mix star's mother Debbie is keen to see her daughter walk down the aisle as soon as possible.