Jessica Simpson

As is customary in celebrity-baby world, Jessica Simpson has given the exclusive rights to her first baby photos to People.

The shoot, which features Simpson and her fiancé Eric Johnson with their daughter Maxwell Drew, appears on the cover and in a People spread on newsstands Friday.

Jessica Simpson gives birth to baby girl

"Life has completely changed," the singer, who gave birth via C-section, tells the magazine. "From how I sleep to what I think about, Maxwell has definitely taken over everything!"

One of the hardest parts of the post-pregnancy process? "It's the worst if I have to pump and give Eric a bottle to give her," she says. "I miss holding her and having that closeness."

"We stare at her all the time," says Simpson, 31. "We can't get enough!"