She's the former SAS Australia star who is eagerly awaiting the arrival of her twin babies with husband her husband, Paul Gatward.
And on Saturday, pregnant Jana Pittman flaunted her blossoming baby bump as she returned to work in the ER.
The ex-Olympian-turned-doctor was all smiles as she noted her scrubs had shrunk after a two week holiday.
Bumping along! On Saturday, Jana Pittman returned to work after a two week holiday and noted that her scrubs had become snug as her baby bump continues to grow
'Oh dear … when you rush to work thinking your scrubs still fit after 2 weeks annual leave,' she captioned an image on Instagram.
'Reality check when you are carrying twins... you are rotund much earlier! Felt like I was in a tight jacket all day,' she added.
The 39-year-old then finished up the post by joking: 'Not to mention everyone got a good look at my belly button (no longer an innie). Need to dress more appropriately.'
Keeping it real: 'Reality check when you are carrying twins... you are rotund much earlier! Felt like I was in a tight jacket all day,' she added