Steph Claire Smith and her husband Josh Miller are using the Spinning Babies method to prepare for the birth of their second child.
The pregnant fitness influencer, 31, filmed her husband holding up their mattress while watching an instructional tutorial for one of the recommended exercises.
In videos uploaded to her Instagram Stories on Thursday, Steph can be heard laughing hysterically, while Josh held up the bottom end of the mattress to keep aloft on an angle.
Steph flaunted her huge baby bump, which she cradled with one arm while holding her iPhone up with the other, and chuckled while she documented the humorous moment.
‘Do you have to stay there?’ she asks Josh and he turns his eyes to the video.
‘I do have to stay here,’ he deadpans, making her laugh harder at the idea of lying on a diagonal angle.

Steph Claire Smith and her husband Josh Miller are using the Spinning Babies method to prepare for the birth of their second child

The pregnant fitness influencer, 31, filmed her husband holding up their mattress while watching an instructional tutorial for one of the recommended exercises
In the second video, she can be seen relaxing on the up-turned mattress, as she practised one of the body balancing exercises for pregnancy and labour.
‘Trying the Spinning Babies moves. Josh is holding up the bed like a champ for one of them,’ the influencer captioned the video.
Spinning Babies is an approach ‘to optimise the physical relationship between the bodies of the mother and baby for pregnancy comfort and easier childbirth,’ per the website that offers ‘Parent Class’ videos.
It was devised by American midwife Gai Tully, who describes it as ‘practical birth preparation and baby positioning to fit the pelvis and reduce pain in childbirth’.
‘During birth, babies descend through the pelvis by turning to fit each curve in the passage,’ the Spinning Babies website explains.
‘Baby’s turns are “fetal rotation.” If fetal rotation can be made easier, birth is easier for everyone. If practiced daily, an easier labor and birth are likely.’

Steph and her husband Josh are preparing for the birth of their second child
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PhD nursing candidate Darlene Sears conducted an in-depth comparison study on Spinning Babies in 2023 to find out if women who used the method had shorter labours, or smoother deliveries.
She found the conventional way of labouring had a shorter duration of labour in the first and second stages.
However, 84 per cent of women who used Spinning Babies delivered vaginally, compared to 77 per cent of women who did not use Spinning Babies.
While doing the maternal positioning exercises didn’t make labour shorter for the 400 women in the study, they were less likely to need a C-section.
Steph and her husband Josh already share a three-year-old son, Harvey, who they welcomed in May 2021.
The pair married in November 2019 in a festival-themed ceremony along the Murray River, exactly one year after getting engaged at the same location.
‘We aren’t one and done,’ Steph said during a fan Q&A session last July.
‘We’d love to have a second child. It’s about working out the best timing for our family at the moment.
‘[But we are] super excited [to have another]… if we are lucky enough to have a sibling and grow our family…we’ll see.’
Steph, the co-founder of fitness program Keep It Cleaner, frequently shares with fans the challenges she faces as a young mother and businesswoman.