<p><span></span>Three weeks after giving birth to her first child, son Luca, <a href="http://dynamic.bauerpublishing.com/mt-search.fcgi?blog_id=2&tag=hilary duff&limit=20&IncludeBlogs=2"><strong>Hilary Duff</strong></a> is finding motherhood her most exciting adventure yet.</p>
"The past couple of weeks have been the most joyful time," she tells Life & Style. "Luca makes us smile all day, every day!"
Motherhood can have its difficulties, but luckily, Luca has been a great baby.
"I'm a bit short on sleep, but he has been the best behaved little boy," she tells Life & Style. "We are so fortunate to have a strong, healthy and happy baby."
Hilary, 24, and her NHL player hubby Mike Comrie, 31, who married in August 2010 after a nearly six-month engagement, welcomed their first child together on March 20.
"Welcome to the world Luca Cruz Comrie!" she tweeted on March 22. "Tuesday evening, we became proud parents of a healthy 7 pound 6 ounce beautiful boy. We are overjoyed and feel like the luckiest parents in the world. He is surrounded by so much love!!"
"Wow I can't believe I have a baby! The most wonderful, sweet, adorable baby! Thank you for all the messages and well wishes! Love you all so much," she added one day later.
Congratulations to the happy new parents!