The 42-year-old singer tells the French magazine Gala her mother, Therese, and sister, Linda, take care of housework, cooking and shopping, so she can devote herself to Nelson and Eddy "200, 300 percent."
"I am changing diapers and breastfeeding, and that's something where no one can take my place. It's tiring but an intense joy," she said. "I take things day by day. That's the secret to me. In any case, breastfeeding is more difficult if you are stressed."
After delivering the boys Oct. 23, Dion said she experienced appetite loss and mood swings, which her mother assured her was normal.
She will begin lightly rehearsing later this month for her return to Las Vegas in March.