Nicole Richie didn't believe the news when she found out she was pregnant.
She told US TV show Access Hollywood: "I didn't believe it. I was in shock. I took about 5 different tests!"
The Simple Life star is due to give birth to her first child withfiance Joel Madden on New Year's Eve, but she isn't planning on slowing down until the very last minute.
"I remember walking into the office and telling my managers, 'I think at around five or six months I'm probably going to be really tired and I'm not going to want to do a lot.' But I've been totally fine. I've been up and at them every single day and I've been ready to go.
"You just have to listen to what your body tells you. But so far I've been great. I haven't slowed down yet!"
Richie revealed she and Madden are waiting until the birth to find out the sex of their baby.
The 26-year-old mother-to-be also explained her reasons behind setting up the Richie Madden Children's Foundation and raising US$25,000 for young mothers in need.
She said: "This obviously came as a function of being pregnant. On the poster it says 'In honour of baby Madden.' There is a natural feeling that comes with being pregnant. You just want to protect your baby."
- BANG! SHOWBIZ
>>Watch the Access Hollywood interview with Nicole Richie:
Part I, Part II, Part III
