Hilary Duff: I May Be 'One and Done' with My Son Luca

Hilary Duff: Luca Loves Our Lopsided Christmas TreeSteve Granitz/WireImage

This Christmas will mark the first as a family of three for Hilary Duff and she couldnt be more excited to celebrate Luca Cruz, lopsided tree and all.

Hes into everything. Im running around the house just trying to keep up with him. Hes so fast! Duff, 25, tells Access Hollywood Live.

He loves the Christmas tree. Obviously we have a funny looking Christmas tree [because] all the ornaments are at the top.

Continuing with tradition, the trio Duff, husband Mike Comrie and their 9-month-old son will spend the holidays in Newport Beach, Calif. and take part in his familys festivities.Its nine kids going crazy, basically wrapping paper flying in the air, toys everywhere and mayhem, she says. Were ! really looking forward to that we get to bring a baby this year! so its really exciting.

In addition to cherishing time with her son, animal advocate Duff recently contributed to A Letter to My Dog: Notes to Our Best Friends. And with her pack of pooches a big part of the household, the new mom and Comrie made it their priority to prep them for baby boys arrival last March.

We kicked the dogs out of the bed a month before Luca came so they didnt blame the baby for why they couldnt sleep in the bed any more, she explains.

We gave them a blanket that Lucas smell had been on in the hospital and it worked. Mike brought Luca in, I came and gave the blanket to the dogs and loved on them Theyve been fine with him.

Having just regained her pre-baby body, Duff admits adding another baby to the mix isnt in the couples immediate future.

Mike and I are literally obsessed with Luca. Were like, Hes perfect. We should just be one and done, she shares.But I think once your baby starts getting older you miss that phase and you go in for round two. Maybe when [Luca's] two or three?

Anya Leon