Super-slim pregnant lingerie model, Sarah Stage shares first photos of her ''healthy'' baby boy.

The the first photos of Sarah Stage's healthy newborn baby boy have been released.

The 30-year-old lingerie model and animal rights activist from Los Angeles had come under fire during her pregnancy for posting a string of sexy selfies showing off her seemingly rock-hard abs.

But James Hunter was born at a healthy eight pounds and seven ounces earlier this week, putting paid to Sarah's critics.

Sarah shared the adorable pictures to her Instagram page. One, which shows a close up of her son's face, said: 'Love at first sight #jameshunter.' 

While the first ever picture of James featured the newborn in an adorable fox outfit. Sarah commented on the photo: 'James Hunter (4/14/15) 8.7lbs/22 inches of HEALTHY baby!

'Thank you for the positive support throughout my journey... It's just beginning!!! #JamesHunter #Healthy'

During her pregnancy many people commented that they felt Sarah's unusually trim figure could be damaging to her unborn child, but it seems their fears were unfounded. 

Sarah confirmed her happy news to E! revealing that her baby boy was 22 inches long at the time of his birth, adding: 'He's a big healthy boy and he got an APGAR score of eight to nine.'

An APGAR score, which stands for Appearance, Pulse, Grimace, Activity, Respiration, is a quick method for assessing the health of a newborn, with scores of seven or above being considered normal. 

Sarah famously documented her changing figure via her Instagram page throughout her pregnancy, earning herself a huge number of fans - as well as a fair share of critics - in the process.

Although the now mother came under fire last month as more and more critics spoke out against toned figure their comments never stopped the model from sharing numerous photos of her tight abs with her 1.6 million Instagram followers.