Then "as if by a miracle" Nadene became pregnant with Brayley, who is now 8 and Dhyreille, 6.
An earlier Guardian interview quoted Lomu's reaction to finding out he was going to be a father.
"I was given a 0.001 per cent chance of having a child.
"I never, ever, thought it would happen. When Nadene told me she was pregnant I was lost. Like duh, um, what? It just sort of went over my head and then about 20 minutes later it hit me."
Lomu put his career on hold to nurse Nadene through the pregnancy.
"I wanted to get cotton wool and wrap it all the way around them. Whatever she wanted or needed I did," Lomu told the Guardian in 2010.
"Massaging her back, going to McDonald's at one or two in the morning for hamburgers. That was her craving. Braylee was a little hamburger cheeseburger baby."
Since Lomu's tragic death Nadene and her children talk about him every day. She said no topic is taboo, she just tries "not to cry in front of them. Even if I do not always succeed."
Sometimes Nadene tells the children, who are being raised Mormon, that they will see their father in another life.
She said on Lomu's last day he strangely thanked her for being an incredible mother and wife before dying a few hours later.
The world mourned Lomu. Messages of support flooded in from the Queen of England, Kate Middleton, Prince William and Elton John.
Despite Lomu's greatness he never reached his full potential on the field, Nadene told Midi Olympique. Doctors had told her his nephrotic syndrome had crippled him as far back as the 1990s.