The emotional turmoil in the actress' personal life left the Oscar winner suffering postpartum depression after baby Moses was born in 2006.
"I didn't know really what was wrong with me... It changed me," Paltrow told Vanity Fair magazine.
"It was great because it also became so clear to me what was important to me. At that time I just had no interest in career whatsoever. My agents would be like, 'This is getting weird. If you don't (get) re-engaged everyone's gonna forget about you.' I was like, 'I don't care. I'm not leaving the babies'. It was so worth it," she added.