"I crave everything!" she confessed. "It's like, with a girl, I just want, like, Pop-Tarts and cinnamon rolls and cinnamon gummy bears and sour cherries. Bring it on!"
"I kind of just, like, go with it," she said of being pregnant. "I go with the waddle -- Immediately when I found out I was pregnant, I was like, stick the stomach out, pop the hips out and waddle. Just own the waddle."
She also shared how Maxwell and Ace felt about getting a baby sister.
"They're so excited because they're only 14 months apart, so they didn't get to experience the excitement of each other," Simpson shared. "But when I told them that we're having another baby, I know that they'll remember that for the rest of their lives."
"They are most excited about learning how to do the swaddle," she continued. "Maxwell, my daughter, is just so happy that it's a girl. They ask me the craziest questions that I can't say on TV ... 'How does the baby come out?' 'Where does the milk come from, I don't understand!'"