The 29-year-old Black Swan star said that she does not mind carrying a few extra pounds as it will be more 'comfy' for a new baby.
When asked if she had any qualms about getting her pre-pregnancy figure back, Natalie replied, 'No. I mean it will be what it's meant to be.
'If you're a little softer I'm sure it's more comfy for a little kid to sleep on.'
The Oscar winning actress had to drop 20lbs for her part as the troubled ballerina but said it was 'necessary' for the role.
The day she finished filming she said that she stopped working out and 'ate everything in the world'.
Speaking about her baby bump, Natalie added, 'It's really fun.
'I love having the evidence of the baby cause I think it's weird, the part of the pregnancy where you don't see any changes.'
'It's really fun to have the constant physical reminders.'
The actress can be next be seen in comedy Your Highness alongside James Franco.