The former "Jersey Shore" star, who already has 15-month-old daughter Meilani with new husband Roger Matthews, is "so excited" they are set to welcome a son into the world, reported Female First.
The 29-year-old beauty announced the news on her blog, writing, "Roger and I have said from the beginning that, just like it was with Meilani, it does not matter which gender our baby is, as long as he or she is healthy.
"Still, we are so excited to be expecting a baby BOY! I've always said I wanted a boy. I think there is something to be said about a mother-and-son bond."
"I can't wait for us to meet him and I know Meilani's going to be an awesome, protective big sister. I'm so happy they're going to grow up close in age and now the countdown really begins! May 2016, a mini Roger is coming! Get ready, world!"
The reality TV star first announced she is expecting her second child at her and Matthews's wedding reception on October 18.