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.