But the actress has said her quote was taken "out of context" and has expressed her disappointment at "how little slack" women cut each other as they go about the job of raising their children.
In a post entitled "Ending the Mommy Wars" on her lifestyle blog Goop, she writes: "A few weeks ago, during an interview, I was asked why I only do one film a year since having children. My answer was this:
"Film work takes one away from home and requires 12-14 hours a day, making it difficult to be the one to make the kids their lunch, drive them to school, and put them to bed. So I have found it better to make a film the exception and my 9-5 job the rule.
"This somehow was taken to mean I had said a 9-5 job is easier, and a lot of heat was thrown my way, especially by other working mothers who somehow used my out-of-context quote as an opportunity to express feelings (perhaps projected) on the subject."
The 41-year-old went on to say she was "constantly perplexed and amazed by how little slack we cut each other as women" and attributed the backlash to females being stressed out by society.
She added: "Why do we feel so entitled to opine, often so negatively, on the choices of other women? Perhaps because there is so much pressure to do it all, and do it all well all at the same time (impossible)."
Gwyneth was originally quoted by E! as saying: "It's much harder for me."
"I feel like I set it up in a way that makes it difficult because … for me, like if I miss a school run, they are like, 'Where were you?'," she continued.
Gwyneth explained that while working and juggling parenting duties is tough, she found working in the movie world completely different and rather challenging.
"I think it's different when you have an office job, because it's routine. You can do all the stuff in the morning and then you come home in the evening. When you're shooting a movie, they're like, 'We need you to go to Wisconsin for two weeks,' and then you work 14 hours a day and that part of it is very difficult," she went on.
"I think to have a regular job and be a mom is not as, of course there are challenges, but it's not like being on set."