The band release Push and Shove on September 24 in the UK and September 25 in the US - their first record in 11 years.
Gwen Stefani told Billboard: "We would've loved for it to come out sooner. At the same time, we realised the people that care about us, that have given us our lives, are out there waiting for us, so what does it matter if it's a month here or a month there?
"As long as we make the record of our lives that we are so proud of. Otherwise, why put something out?"
Speaking of their 'Summer Tour 2009', bassist Tony Kanal added: "We had writer's block up until that point. When we did that tour, it was the waking of the dead.
"Not only did we get our confidence back, on top of that it gave us the feeling of not needing to rush.
"All these amazing people were still coming out to see us, so we thought, 'Let's make the best record we can make now'. We wouldn't have this record if we didn't do that tour."
No Doubt recently confirmed the tracklisting for Push and Shove.
Watch the video for No Doubt's new single 'Settle Down' below: