Nicole Richie still won't confirm baby

Nicole Richie has been out shopping for baby products.'The Simple Life' star - who is reportedly pregnant - has been on two massive sprees at hip Hollywood baby boutique Petit Tresor in the last two weeks. On her most recent trip to the store, Nicole bought two Born Out of Necessity diaper bags and a collection of toys, including a stuffed bear, a mobile and a play mat.The 25-year-old is believed to be more than three months pregnant with boyfriend Joel Madden's baby, but neither have confirmed she is expecting. Nicole first sparked pregnancy rumors when she was photographed outside are productive clinic in April. A source said: "Nicole recently underwent a series of tests, including blood and urine screenings, which confirmed she is pregnant."The super-slim star is said to be going on a special diet for the sake of her unborn child.