Plus-size model Tess Holliday posts nude photo and blasts online trolls for fat-shaming the mother-to-be

Top model Tess Holliday is just three weeks away from becoming a mother - and she's fed up of trolls trying to take away her glow.

Holliday took to Instagram Thursday to silence internet trolls who claim they can't tell that she's pregnant due to her size.

"When people say to me, 'I can't tell you're pregnant,'" she captioned a nude selfie proudly showing off her baby bump.

"I will continue to live unapologetically, to thrive in this body, prove the naysayers wrong & laugh at the ignorance," she continued.

The model - who has walked for a long list of designers around the world and has also been featured in Vogue Italia - became the largest plus-size model signed to a mainstream agency in January 2015.

The 30-year-old is also responsible for coining the viral hashtag "#EffYourBeautyStandards," which was created to promote plus-size positivity on social media and silence body-shamers.

The LA-based model has a huge online following, too.

With over 1.2 million followers on Instagram and 56,000 on Twitter, Holliday has reached millions with her positive mantras.

In April, the model shared a photo to Instagram voicing her frustration to critics of her weight. "As I enter my 8th month, my body overall looks the same other than my belly & I'm okay with that. What I've had to be learn to be okay with (WHICH IS NOT COOL) is the fact that people still think it's okay to comment on my body: 'you don't look pregnant', 'you must be have quadruplets', 'you are putting your baby at risk' & a slew of other uneducated statements that are very far from my reality," she wrote.

"When 'celebrities' are pregnant in the press, they look glamorous, toned & are eager to talk about how they are going to get the baby weight off. While I've done my best to look as put together as possible, that's not real life, & it's not for most women."