Jenni "J-Woww" Farley and fiancé Roger Mathews are celebrating the birth of their baby girl Meilani Alexandra Mathews.

The reality star’s rep told MTV, which airs Snooki & Jwoww, "Jenni and Roger are so excited to welcome the newest guidette Meilani Alexandra Mathews to the world weighing 7 lbs., 13 oz. Meilani and her parents are doing great and are happy and healthy. Meilani is already looking to trade her baby bottle for barbells."

MTV added in a statement, "We’re fist pumping in celebration of Jenni 'JWOWW' Farley and Roger Mathews’ new baby girl Meilani Alexandra Mathews. We’re so excited for the new parents and to welcome the newest member to the MTV family."

Farley announced her pregnancy on Christmas Day and shared a text message of the advice she received from her co-star and fellow mother Snooki, "Sleep safe, keep hydrated, no Advil or Aleve… No pushing on the toilet either."