The "Keeping Up with the Kardashians" star, who welcomed her second child Saint with husband Kanye West in December, said things aren't all cool at home.
"I'm up at 4 a.M., pumping and delirious, hiding in my daughter's closet because if she sees I snuck out of her bed, she will start to cry..." she wrote on her website.
The 35-year-old explains her mother, Kris Jenner, told her it would be a challenge having more than one child, but she thought she was exaggerating.
"It seemed like every time Kanye and I would go out, we would see couples - or really anybody that had kids - and everyone would say, 'Wait until you have two.