The 39-year-old actress, who is expecting her third child with Ben Affleck, put on her Prada heels for the Toronto Film Festival and shared her mum-to-be tips.
'We have snacks in the car. We have candy in the car,' she told USA Today.
'While I'm very good about caffeine, I am also not afraid once or twice a pregnancy to have a half-caf latte. Today is one of those days.'
She continued, 'Find ways to be as comfortable as possible and just go with it. It's not an illness, being pregnant. I'm in the easiest part of it.'
In town to promote Butter, which she stars in a produced, she said the despite her pregnancy she is still working it in heels.
'I have some that are two-inches taller that I wore last night,' she said. 'You go through a training course when you're in the Screen Actors Guild. They have an obstacle course in platform heels. Everybody you see out there, we're all in it.'