Credit: Dr. Billy Ingram/

Jessica Simpson won't be alone when she turns 30 this Saturday -- she's on the romantic Italian isle of Capri with brand-new man Eric Johnson -- but it's not exactly how she imagined the birthday.

"I thought I had it figured out; I'm going to be this great pop star, be married, have babies," Simpson has said about the 3-0 milestone.

"But things can be taken from you," she added sadly. Indeed, after divorcing Nick Lachey in July 2006, she endured a spate of failed romances with John Mayer, Tony Romo and Billy Corgan.

Her last album -- 2008's country-music foray Do You Know -- tanked, and her poorly received VH1 reality show The Price of Beauty is being "retooled" for its second season, according to a source.

But, for now, Simpson appears to be enjoying herself with new love Johnson. "I know she is really happy," an insider says in the new Us Weekly.