Suleman, 33, remains in a hospital in southern California after giving birth Jan. 26 to the octuplets. Suleman, who has six other children, is now the mother of 10 boys and four girls younger than 8. All were born by in vitro fertilization, her mother has said.
Despite what might seem like an overwhelming number of children and despite her family's apparent financial difficulties, Suleman is "upbeat" about her future, Killeen said.
"She's very joyful. Nadya is a very balanced and together woman," she said.
"She's very, very happy and joyful for the miracle of life and the babies."
Suleman has held the babies and has named them, Killeen said, though she declined to reveal the names.
Speaking from her home in California, Nadya's mother, Angela Suleman, tells usmagazine.com, "She always blamed me for only having her. She was a single child. I was a teacher and I am retired now. I always asked other students how they liked it [being an only child] and they liked it, they didn't have to share anything but she was different, she was always upset I didn't have more. But I don't think she really knew. If she had brothers and sisters I don't think she would have been happier sharing all that so it's all what's in your mind I think."
Angela says Nadya first talked about having a large family when she was just a teenager.
She explained, "She always wanted a lot of kids. I have been supportive but you know now that I am thinking back, she wanted children so much that it was almost not normal as far as I am concerned. I did go and see a psychiatrist or a psychologist once. I wanted to see what was going on with her because she has always talked about having children and always being upset that she didn't have siblings. I used to take her everywhere so she would have a lot of friends around of her own age group but I guess it didn't really help."
Nadya is only the second person in the U.S. to give birth to eight babies at once.