Model Sarah Stage has been both slammed and praised for keeping her body in impeccable shape during her pregnancy.
The 30-year-old caused jaws to drop as she seven months pregnant with her first child with this photo.
The Los Angeles based model has a fanbase of over 1.4 million followers on Instagram, which she has acquired thanks to her tantalising underwear selfies - which have not stopped since she revealed she is expecting.
Many followers were quick to slam the animal right activist, implying she was not giving her unborn baby enough nutrients to grow and saying that her future child will be born “tiny” and “underdeveloped”.
The model, of European and Costa Rican descent, fired back that those who did not like her photos could unfollow her, as she was enjoying every minute of her pregnancy.
Fitness experts have attested to the fact that it is completely possible to have tight abdominal muscles like Sarah’s, right up until she ends up in the maternity ward.
Franci Cohen, a personal trainer, told Cosmopolitan, that in order to regain a trim physique while pregnant is to eat smaller meals throughout the day.
“This will help maintain the integrity of the muscles so they don't stretch,” mum-of-four Cohen states.
She also adds that a major factor in how fit and healthy a woman remains during her pregnancy depends on her lifestyle before.
"The main thing is, before you go into your pregnancy, I would say get as fit as you can. Any doctor will tell you to continue, for the most part, at the same level you were," Cohen says. "You can continue until the day you give birth as long as you're not so extended with the belly that it throws your balance off or if you're carrying dangerously low."
"I saw [Sarah's] body, and I know people like that. A lot of it has to do with genetics, and if she's watching her diet and is extremely fit, and she's genetically predisposed to carry small to begin with, then it's three things in her favor," Cohen adds.
Fitness and diet aside, it appears that Sarah’s beauty routine is also a reason for her glowing appearance.
On her pregnancy blog, StageMama.net, she reveals that she has been using cult products from the Mama Mio range to prevent stretch marks, rosehip oil, Yogi tea and pre-natal vitamins.