Hailee Steinfeld, Josh Allen's wife, and Millie Bobby Brown are among celebrities celebrating their first Mother's Day in 2026.

According to E! Online, Steinfeld and the Buffalo Bills quarterback are preparing for May 10 with their newborn daughter. Allen has spoken enthusiastically about his wife, calling her an "absolute rockstar."

During an April 20 press conference with the Buffalo Bills, the 29-year-old quarterback discussed fatherhood. "It definitely changes [your] mindset a little bit," Allen told reporters. "I'm very excited. I do think this is going to be the best version of myself in all aspects—in my professional career and my personal life. It's such a blessing."

The couple announced their arrival via Steinfeld's Beau Society Substack in early April: "Our baby girl has arrived!! We're feeling incredibly grateful and blessed and savouring these early moments." Allen acknowledged the sleep deprivation but expressed contentment with their new life.

Millie Bobby Brown welcomed her daughter through adoption last August. The Stranger Things actor posted an Instagram tribute on her February birthday: "grateful for my husband and daughter, for my family and friends. all of my animals. I am so blessed."

Lo Bosworth, known from The Hills, welcomed her daughter Nelle two months before launching her podcast Tell Me I'm A Good Mom. She is marking Mother's Day by giving Crumbl cookies to new mother friends.

These celebrities are experiencing motherhood—whether biological or through adoption—with support from their partners.