Casey Wilson is expecting her second child with husband David Caspe

The brunette beauty shared: "Some big news on my end, which is that I am pregnant again."

Although she can't wait to welcome her second bundle of joy into the world, Casey - who is currently in her second trimester - opened up about suffering with really bad morning sickness throughout her pregnancy so far.

She said: "I'm so excited. I was feeling so sick for about a month, but now I'm ... not feeling great."

Casey and her screenwriter spouse David, 38, - who got married in May 2014 at an intimate outdoor wedding in the Californian city of Ojai - have been vocal about wanting to add to their brood ever since they had their 22-month-old son Max in May 2015.

She previously said: "We both come from two-kid families and I can't imagine going through life without a sibling, especially later in life."

The couple are yet to divulge whether they are expecting a baby girl or baby boy, but Casey said when she had Max that she didn't feel "ready" to have a little girl after the death of her mother.

At the time, she said: "Having lost my mom, and having had such a close mother-daughter relationship, I felt like somehow I wasn't ready for a girl.

"I felt like the universe is letting me try this out with a boy first."