Australian hunk Hugh Jackman was left heartbroken by his and his wife's inability to have children naturally.
Jackman, 43, and wife Deborra, 55, were devastated when they were told they had fertility problems.
He admitted it was hard to have to go through IVF treatment and for Deborra to suffer two miscarriages.
However, he admitted that the love they have for their adopted children, son Oscar, 11, and daughter Ava, 6, has eased the pain they experienced.
"It was painful. We thought we'd have a kid or two biologically and then adopt. Obviously, biologically wasn't the way we were meant to have children. I don't think of them as adopted - they are our children," Contactmusic quoted him as saying.
Jackman also said that parenthood is not always easy but he has learnt a lot about himself from his kids.
"With kids you have this wonderful ability to carry on for months without any sleep. And you learn patience. Kids have a way of pushing every button. They find the trigger points - those things that make you frustrated and angry and they use them," he was quoted as telling the Daily Record newspaper.
His children even help him choose his film roles, as it was his son who encouraged him to star in robot boxing movie 'Real Steel' after he read the script to him as a bedtime story.
"I got to the end of the scene and Oscar was still awake. He told me to keep going and when we got through it, he said, 'Dad you have to do this'," he said.