The "Black Swan" star is expecting her second child with husband Ashton Kutcher
"I forgot how far along I was today. I think with the first one, you're so enamoured with the initial experience that I was constantly checking the app. What fruit size is the baby? Is it the size of a grape or an avocado?" Kunis, 32, said.
The actress said she forgets the details like how far along she is pregnant, reported Female First.