Tamera Mowry-Housley is expecting a baby boy.

The Sister Sister star announced her pregnancy earlier this year, exclaiming she was delighted to be starting a family with her husband Adam Housley.

Tamera has now revealed the pair will be welcoming a son later this year.

"I'm having a baby boy!" Tamera gushed in an interview with In Touch magazine. "We're so thrilled."

Tamera is preparing for her new role as a mother by "practicing" on her twin sister Tia's son Cree.

The 33-year-old star has also begun decorating the nursery.

"It's going to have a sports theme," she smiled.

Tamera admitted she had her heart set on a baby boy a couple of months ago. She revealed why she wanted to add a little male bundle of joy to her family.

"I want a boy because I have two brothers whom I love and adore," she explained. "I helped raise my brothers so I have somewhat of an experience raising boys. I haven't the slightest idea about raising a girl. It's like the unknown."