Miranda is due to pop next year - she's expecting her first baby to new husband Orlando Bloom.
"For me, family is life," the 27-year-old says.
"The decision to start one wasn’t complex at all."
While Miranda still enjoys her modelling job, she said she isn't afraid of letting it go to look after her future bub.
"'My career has been wonderful, but it’s not my life," she says. "I don’t feel pressure to get back to work."
So what's in Miranda's future besides a really amazing-looking child?
"My goal involves a hammock, a vegetable patch, and a solar-powered house," she says.
"And I hope to eventually get there."