The 27-year-old reality star, real name Jennifer Farley, is expecting her first child with fiancé Roger Mathews.
Santa brought Roger and I the best gift of all... http://t.co/7MENFiXxIl— JWOWW (@JENNIWOWW) December 25, 2013
"Merry Christmas from within! Roger and I couldn’t have asked for a better Christmas gift this year!" Farley wrote.
"We wanted to share this exciting news with you all first because you have been a part of our lives these past few years and seen the love between Roger and me develop and blossom," she added. "We are so excited to share this new chapter of our lives with you as we become parents and create more memories with a new addition to our family!
"Thank you for all your love and support and for being there for us throughout the years! We are extremely happy and cannot wait for our bundle of joy to arrive!" she continued.
Polizzi took to Twitter to congratulate her realty TV partner-in-crime.
"IM SO EXCITED MY BEST @JENNIWOWW IS PREGNANT!" she tweeted. "Finally we can be MOMS together. love you boo! I got you."
"Baby Mathews" is due in July.