The model mama-of-one took to Instagram to announce the exciting news.
โCooking in the oven,โ she penned alongside a snap of her bubโs ultrasound.
โTears of joy as bubby no.2 is on the way.!!! 12 weeks along!! (pic from our 8 week scan). Excited to share this new adventure with you guys!โ

Babyโs first photo!
The 28-year-old and her hubby Michael Miziner are already parents to their two-year-old daughter Violet, who they welcomed in September 2013.
Speaking candidly to The Sunday Telegraph on the joys of motherhood, the Aussie beauty admitted a healthy balance is essential for her sanity.
โEvery weekend (Violet) goes to Mishโs mumโs house and we get our weekend to ourselves,โ she said.
โI think thatโs incredibly healthy for the relationship.โ

Rach and Mish at the 2013 David Jones launch.

Violet with her Nana.
Rachael became a household name as the 2009 Miss Universe Australia entry.
The following year she cemented her place in the spotlight as a contestant on Dancing With The Stars, where she famously rumbaโed her way to love with now hubby, Michael.
The pair tied the knot the same year they welcomed their firstborn.
A huge congratulations to the family!