The 38-year-old singer is mum to four-year-old daughter Bluebell and recently released her new swimwear range for British retailer Next.
She said to Britain's OK! magazine: 'I'm a single mum who works and it's a constant juggling act. I need to be flexible with my schedule so I can be with Bluebell.
'When she is at school, I can work - I am doing my next two ranges in school hours! I am very close to my mum and she helps me look after her.
'In fact I really believe that women today juggle so many different roles that they deserve holidays!
Halliwell is currently dating aristocrat Henry Beckwith after meeting two years ago.
She said: 'And to empower them [women] to feel good about themselves, I have created a collection that is both girlie and feminine and strong and sexy with a great fit and cut to give women confidence, even when they are feeling vulnerable. I should know, I met Henry on the beach!'