Gia's father, Joe Giudice, was not present for his daughter's birthday as he's serving the remainder of a 41-month prison sentence
, which began March 23, 2016, at the Federal Correctional Institute in Fort Dix, New Jersey. In 2014, Teresa and Joe pleaded guilty to fraud charges, but requested to serve jail time separately to ensure their daughters have parental care. When talking to ET, Teresa
-- who served 11 months in prison last year -- credited her four daughters for helping her through this time.