Not since her 20s has the Australian model posed nude and Gale admits her decision to show off her flesh again wasn't without trepidation.
When first approached by the magazine, Gale, 38, was worried about the public reaction but says it was her mum's wise words that got her to agree to the naked cover shoot.
"She said women all over the country and all over the world world go through this everyday and its nothing to be worried about, or ashamed about, or it's not a scandal," Gale recalled during a behind the scenes interview on the Seven Network's Sunday Night program.
Gale says the nude shoot was quite daunting.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
"I think any woman would know that when you're in your mid-20s, things are firmer and perkier and things are just all round better."
But Gale has no regrets about her decision - which was aimed at celebrating the pregnant form.
"As vulnerable as I felt doing it, it was quite a liberating thing to do as well. And I have been enjoying watching my body change, and it's great to record that," she said.
Gale is due to give birth in mid-May.
