And now Duff tells us they already have a name picked out—make that two names...
"We have one that's very traditional and one that's more unique, and when the baby comes out, we'll decide then," Duff told with us when she stopped by E! News yesterday to promote her just-released second novel, Devoted.
"It's not a fruit or a veggie," she joked, alluding to Hollywood's penchant for, well, unique baby names.
The 24-year-old said she and her hockey player man have already discussed wanting more kids.
"We definitely want to have more than one," she said. "We don't want to have just an only child. [Mike] comes from a large family. I'm superclose with my sister. I think that's important. But we are not planning that right now. We're like, 'Let's see how one baby goes.' "
Now four-and-a-half-months pregnant, Duff says she's holding up pretty well. "I didn't have any sickness, it's just a strange feeling," she explained. "I think this trimester I got more energy. The first one I was like a slug."
Comrie won't be pushing sports on the little one.
"He's not like that," she said. "He was just happy either way. He's really happy that we're having a baby. He never once was like, 'I hope it's a boy! I hope it's a boy!' like most guys do...Everyone obviously automatically assumes that the baby's going to be born in skates. And he's like, 'I don't know. If they want to do that, obviously we'll help them out.' "