Yesterday, Rachael also shared a cute behind-the-scenes snap form the stunning beach location.
Already a mum to two-year-old daughter Violet, Rachael announced she and hubby Michael Miziner were expecting baby number two back in August.
"Cooking in the oven • • Tears of joy as bubby no.2 is on the way,” she wrote alongside a pic of her sonogram.
“12 weeks along!! (pic from our 8 week scan). Excited to share this new adventure with you guys".