'Mena made quite the entrance and spent a short time in special care,' Ryan and Cassie wrote alongside their image. 'Keeping in trend with her siblings and scared her Mumma and Dadda, however is doing extremely well and we hope to have her home shortly! Daddy was amazing and Mumma is doing great!'
Also featured in the picture are Cassie and Ryan’s 18-month-old daughter Emmerson and nine-year-old Ramani, from Cassie’s previous marriage.
The couple revealed in May that they were expecting a baby.
'We found out a couple of days before we started filming,' they said on the show. 'We wanted to keep it quiet for the time being because we've been through such hardships with our pregnancies.'