"I may force myself to do it one more time because the result is so worth it," she told Harper's Bazaar. "And also my dad said to me that his only regret in life was that he had only two children and he didn't have more."
Usmagazine.com said the "Iron Man" star also said she and her husband, Coldplay frontman Chris Martin, may some day adopt.
"I do feel we're so fortunate, and we kind of owe it to humanity," Paltrow said. "We have a lot of love to give and a lot of resources."