"Every time I look at my tummy, I'm reminded at how amazing my body is.
"Even though I've had a baby before, I didn't love myself entirely. So now every kick, every pain, is incredible to me."
"I get constantly shamed and criticized for existing in this body, but the problem isn't my size, it's others inability to comprehend that beauty doesn't come pre-packaged in one size," Holliday continued.
"I'm embracing my stomach getting bigger, stretch marks, and loving this little life I'm growing."
Holliday has a 10-year-old son called Rylee from a previous relationship, and is due to give birth to her first child with her fiancé Nick Holliday in June.
The couple, who have been together for four years recently enjoyed a pre-baby break in Palm Springs, during which the model mum took the opportunity to strike a few pool-side poses.