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By Gael Fashingbauer Cooper

Carrie Underwood and Mike Fisher agree about most everything, with one major exception: the number of children they hope to have.

In a joint interview on "Oprah's Next Chapter," Underwood, 29, says that while Fisher, 31, grew up with "three siblings, I think two is a good number to have," the country crooner tells host Oprah Winfrey, 58. "We'll see. We'll cross that bridge. I don't want too many."

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Fisher insists he'd be happy with "two or three" kids, but Underwood joked that usually, "He's like, 'I want seven!'"

Though Underwood and Fisher don't have immediate plans to start a family, Underwood predicts her husband of nearly two years "is going to be the best dad ever, and that makes the whole parent situation seem much better."PHOTOS: Carrie Underwood and Mike Fisher's romance

 

The "Blown Away" singer also admits that she still "can't believe" she's off the market. "Sometimes I still have those moments where I can't believe I'm married. I spent 27 years not being married and I kind of got used to it," Underwood says. "But now, the more I do it, the more I'm able to think more of 'we.'"

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"For the first year of our marriage, I still would give people gifts and write: 'Love, Carrie,'" she says. "And I'm like, OK, now I'm 'Carrie and Mike' -- there's two of us now. But I'm getting better all the time."

"Oprah's Next Chapter" airs Sunday at 9 p.m. ET on OWN: Oprah Winfrey Network.

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