Camila Alves took her kids Levi and Vida to the Thousand Oaks Mall on August 17, 2012. Credit: FameFlynet Pictures

A new addition ahead of their new arrival!

With baby No. 3. on the way, Camila Alves and Matthew McConaughey are excited to be expanding their brood. And in Thousand Oaks, Calif, on Friday, the family added another member -- a family pet!

The pregnant model, 30, and her children, son Levi, 3, and daughter Vida, 2, took a stroll with their new dog -- a small black pooch with glossy dark fur and brown ears. For the family's day out, Alves flaunted her growing baby bump in a tight maroon bandage-style dress teamed with a dark brown leather jacket, aviator sunglasses and silver flats. Little Levi wore am oxford shirt and khaki shorts and Vida sported a purple sundress.

Since McConaughey and Alves, who tied the knot in June, announced they were expecting, the star has seriously stepped up her maternity wardrobe.

"I look better if I have tight, fitted things," the Brazilian stunner told Us Weekly at her I.N.C. campaign launch in NYC in July. "Anytime I put on anything that is really flowing, it makes me look twice as big than I am."

"Do not be afraid to be sexy while you're pregnant, she advised. "I'm learning that on my third pregnancy. I'm like, 'oh wow, you don't have to wear just flowing things.'"