Taking to Instagram, she shared the exciting news with fans.
Captioning an image of the pair, Skye wrote: "WE’RE PREGNANT. Couldn’t think of anything better than starting a family with this handsome man."
The reality star revealed that she is 14 weeks along. She added the following hashtags to her announcement: "#14weekspregnant #14weeks3days #3monthspregnant".
Skye and Lachlan have been dating since November 2017, and the pair have recently sparked engagement and wedding rumours with pictures of Skye in a wedding dress were posted to her Instagram.