She's due to give birth any day but mum-to-be Sarah Wiss is still doing her exercise while 41 weeks pregnant!
Sara Wiss, from Sweden, who works as a personal trainer, said she'd become bored and frustrated waiting for her baby boy to be born so she hit the gym.
'Keep calm! I'm still pregnant,' she wrote.
Fans were blown away by her strength. 'Good Lord, woman! That's amazing!' wrote one.