Hillary Duff says she can't stop smiling since becoming a mum

Washington, Apr 11 (ANI): Hilary Duff has revealed that her newborn son Luca Cruz makes her smile all day.

The 24-year-old actress and her husband Mike Comrie welcomed their first child, on March 20, and she says the couple are loving their new roles as parents.

"The past couple of weeks have been the most joyful time. Luca makes us smile all day, every day!" Contactmusic quoted her as telling Life 'n' Style magazine.

"Motherhood can have its difficulties, but luckily, Luca has been a great baby," she said.

However, Duff did admit that it hasn't all been plain sailing as looking after a newborn has ruined her sleeping pattern.

"I'm a bit short on sleep, but he has been the best behaved little boy. We are so fortunate to have a strong, healthy and happy baby," she added. (ANI)