sarah stage , a 30-year-old underwear model and animal rights activist from los angeles , has 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 mother-to-be came under fire last month as more and more critics spoke out against her unusually trim and toned figure , claiming it could be doing damage to her unborn child , their comments have n't stopped the model from sharing numerous and live a healthy lifestyle .
` i 'm completely inspired to go to the gym first thing in the morning .