Britney Spears, who announced her pregnancy last month, said she and husband Kevin Federline "ate at some amazing restaurants in Scottsdale" during a "peaceful and relaxing" two-week vacation in Arizona.

Britney also plugs the couple's new reality series, "Britney and Kevin: Chaotic". The six-episode series based on private home videos Britney and Kevin shot themselves during their courtship, engagement and wedding, will premiere on May 17.

"Doing a documentary series seemed like the last thing I would do," Britney Spears writes. "... And putting ourselves out there seemed crazy, but that is exactly when I realized I should do it. The craziest things I've ever done have always been for the best."

The pop star said she didn't do the series for her career.

"So much happened last year much too fast and I really wanted to take advantage of this opportunity to reflect on all of it. It's like my own therapy. I hope you guys enjoy our little project! We are having so much fun putting it all together." 

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