The 'This Is 40' actress, who is expecting her second child with husband Brian Austin Green, said her pregnancy was rough in the beginning, reported Us magazine.
"I've had rough first trimesters. But once you get into the second, it's fine after that.
"I don't have time to think about it. I have a 1-year-old running around. And then when you're working like 16 hours a day, there's no time for you at all. When I was home, I wasn't sleeping -- I was trying to make out time for the baby and spend time with him. So it was rough," she said.