After sharing the video, Marnie's celebrity pals rushed to congratulate the couple as her fellow Geordie Shore star Sophie Kasaei penned: "The best blessing ever she’s going to be the most precious beautiful little girl ever."
Alongside the video, Celebrity Big Brother finalist Marnie teased over their family expanding, with her having written in the caption of the post: "Here we go again …" Casey reacted in the comments section: "Can't wait to meet our baby.".
The video also showed Marnie and former Union J member Casey cradling her baby bump whilst at home.
The expectant star posted a video of herself cutting a cake the words "It's a....." on it, before cutting the cake to reveal whether the icing inside of the sweet treat was pink or blue.
Rox and Oax were then seen holding up baby scans at one point in the video, before the family came together in a clip.
