Erin Lichy Is Pregnant! Real Housewives Star Expecting Baby No. 4 with Husband Abe: 'Another Act to the Circus' (Exclusive)

Erin Lichy's family is growing!

The Real Housewives of New York City star, serial entrepreneur, and co-founder of Mezcalum, a premium artisanal mezcal brand, is pregnant and expecting her fourth baby with husband Abe, a rep for the couple exclusively shares with PEOPLE.

Erin and Abe's new addition will join sons Levi, 9, Elijah, 4, and daughter Layla, 7, and the reality star, 37, tells PEOPLE that she's fully prepared for the chaos that will come with four children in the house.

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories.

"It feels like adding another act to the circus!" she jokes, telling PEOPLE, "Work and life have been so busy that I haven’t really had a chance to even think about how it’ll change things, but I think it will be pretty seamless to be honest. Three vs. four kids doesn’t seem so scary."

"Mostly, I’m just looking forward to enjoying a Mezcalum cocktail and going out for a massive sushi dinner again!”

As for how the mom of three discovered she was expecting again, Erin shares, "I was out East with Abe and some friends when I suddenly became super sensitive to smells around me. That’s when I knew — I thought, ‘Damn. Here we go again!’"

The PEOPLE Puzzler crossword is here! How quickly can you solve it? Play now!

Erin's sensitivities continued through her first trimester. "The first 10 weeks were rough," she admits. "I was exhausted and nauseous all the time."

"Since then, not so bad!" she excitedly adds. Now Erin has been able to fully indulge in her cravings, which include "cold drinks, Pinkberry and Greek yogurt, Italian food and French fries."

While Erin and Abe haven't found out the sex of their baby on the way, she says, "We’ll probably know soon!" The couple has also "started floating around some name ideas, but we haven’t landed on anything just yet.”

As for how it feels to finally share the news, Erin says it's "really special."