The former 27-year-old Jersey Shore star shared her exciting news on Instagram Wednesday, showing off her Christmas card, which had a photo of an ultrasound on it.
"Happy Holidays from our growing famiy to yours! Love, Jenni, Roger and arriving July, 2014 Baby Mathews!," the card read.
JWoww went on to post a caption alongside the photo of the card, writing, "Santa brought me and Roger the best gift of all."
She continued to gush over her baby-to-be on her blog, writing, "Merry Christmas from within! Roger and I couldn't have asked for a better Christmas gift this year! 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."
"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!," she continued. "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!"
Following her announcement, her BFF Snooki gave JWoww some motherhood advice via text (which JWoww shared on Instagram), writing, "Sleep safe, keep hydrated, no Advil or Aleve. No pushing on the toilet either."
Congrats to the mom-to-be!