People.com Celebrity Parents Hilary Duff: Seeing Luca Thrive on Breastmilk Is Rewarding "It's such a wonderful bonding time," says Duff. "Just to have your baby thrive and knowing that you're doing that and you're responsible, it's such a rewarding feeling." By Staff Author Updated on December 1, 2020 08:30 PM Share Tweet Pin Email New mom Hilary Duff is splitting the parenting with Mike Comrie, but there’s one aspect of tending to their son Luca Cruz that she has to handle herself. “He’s really hands-on during the day,” the actress and singer, 24, who is the new spokesperson for Johnson’s Baby Cares initiative, tells PEOPLE of her husband. “But at night, I’m the only one that can feed the baby. I wasn’t going to make him suffer just because I was having to get up.” Though she leaves pumped milk for Comrie and her mother, who watches the baby while she takes a Pilates or spin class, Duff enjoys the time she spends nursing her 4-week-old son.“It’s such a wonderful bonding time,” says Duff. “Just to have your baby thrive and knowing that you’re doing that and you’re responsible — it’s such a rewarding feeling.” That same sense of responsibility since she entered into the world of motherhood motivated Duff to partner with Johnson’s Baby Cares for their Save the Children campaign, which will assemble, donate and distribute 5,000 Johnson’s Baby Care Kits that will provide families with baby care essentials immediately, during and after disasters. “I’m involved in many different charities, but just becoming a new mom and when I heard about Johnson’s doing this, I was really inspired,” she explains. “It’s such a great thing to have these kits be prepared for these new moms [so they are able] to take care of their babies. That’s all that’s been on my mind. The second that you have your baby, you’re like, ‘Okay, I’m 100 percent responsible for this.'” At this point in Luca’s life, Duff says the relatively monotonous daily routine is broken up by frequent milestones. “The day is exciting if he makes a new face or he gets to take a real bath instead of a sponge bath,” she shares. “You know what was a big milestone? The belly button falling off. That was a huge one. And then I wanted to keep it but my husband was like, ‘No, that’s gross, you can’t keep it!’ I’m like, ‘I’m totally keeping it,’ and I secretly kept it.” Duff adds, laughing, “But now it’s not a secret anymore. It’s in a Ziploc bag in the back of my makeup drawer. Luca’s going to think I’m a freak!” — Julie Jordan and Liz Raftery Related Articles Hilary Duff Celebrates Daughter Mae's First Birthday — See the Adorable 'Cake Monster' in Action! Hilary Duff Says Daughter Banks, 3, Makes Her Play Her Own Music in the Car: 'So Embarrassing' Hilary Duff's Baby Bump Is on the Move! Hilary Duff Fans Are Convinced She Revealed She's Pregnant on Instagram – Matthew Koma Responds Hilary Duff Shares Sweet Family Photos with Children Mae, Banks and Luca from Halloween Weekend Hilary Duff Teases Husband Matthew Koma's Loving Tribute Is 'Bound to Get Him Baby Number 4' Hilary Duff Gets a Birthday Surprise from 'How I Met Your Father' Costars on Set Hilary Duff on Having 'Lightning Crotch' in Home Stretch of Pregnancy: It's 'Stabbing Pains' Hilary Duff: Motherhood's 'Biggest Shock' Is No Sleep Hilary Duff: Postpartum Body Backlash Adds Pressure Hilary Duff: 'I Love Changing Diapers!' Hilary Duff: Every Mom Needs Time to Herself Hilary Duff Opens Up About Deciding to Stop Breastfeeding After 6 Months: 'I Was Going to Break' Hilary Duff Opens Up About Becoming a Mom at 24: 'It Was a Little Isolating in the Beginning' Hilary Duff: I Can't Believe I Have a Baby! Hilary Duff Welcomes Son Luca Cruz Newsletter Sign Up By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. Cookies Settings Accept All Cookies