Gwen Stefani used to find motherhood stressful.

The No Doubt singer - who has sons Kingston, six, and four-year-old Zuma with her husband Gavin Rossdale - struggled to juggle the demands of recording the band's first album in ten years, 'Push and Shove', with her home life and being a devoted mother and said she found it ''really hard'' to cope.

She told Marie Claire magazine: ''I would be up all night because my second baby didn't sleep, and he had a lot of ear infections. Then I'd wake up in the morning and do my workout, which I always felt I had to do, and then meetings for my three clothing lines, and then hang out with my kids, take them to preschool - da, da, da.

''At four o'clock, I'd be like, 'All right, I'm out of here. I'm going to go to the studio and try to write a record.' I'd sit on the couch [with my band mates] and be like, 'Let's do this now, because I'm missing time with the kids. I could be having dinner with them and putting them to bed.' It was really hard.''

The 43-year-old star is known for her toned abs and trim figure, but Gwen confessed she has since sacrificed going to the gym for the sake of maintaining a balanced lifestyle. The blonde bombshell was addicted to working out five times a week until she realised cutting down on exercise was something she ''had to do''.

She admitted: ''This past year, I kind of stopped working out. I think my body just needed a break. And so I did that and focused more on feeling good as opposed to beating myself up.''

However, Gwen revealed her ''miracle'' ten-year marriage to rocker Gavin is stronger than ever as a result of everything, describing it as her ''biggest accomplishment'' to date.