Having a baby with Hailee Steinfeld has been a game-changer for Josh Allen.

In fact, Buffalo Bills quarterback said the upcoming NFL season is "definitely gonna be different" after welcoming baby girl Harper Haize Allen with the Sinners star earlier this year.

"I can't tell you exactly how I'm going to feel right at this moment," Allen shared in an exclusive interview with E! News' Will Marfuggi, "but it's going to be obviously a lot of FaceTimes, a lot of calls. I don't want to miss anything."

Fortunately, the 30-year-old has found the perfect teammate in Steinfeld, who he married in May 2025. As Allen put it, "To have a supportive partner, which I do, that allows me to go and work out" has been nothing but beneficial.

"When we were back in Buffalo for OTAs," he continued, "just making sure that I could go to the facility, get my work done, be with the guys and understanding what that was for."

Allen also credited Steinfeld, 29, for helping him to "find that balance" as a new parent.

"Kids are ever changing, and so is your schedule," Allen continued, adding that he's "trying to ride the wave right now and enjoy" his time with the Pitch Perfect alum and their daughter before training camp. "Just maintaining a positive mindset throughout the whole year."

That's why Allen tries to catch as much Z's as he can, adding Natrol sleep supplements to his personal routine for a restful slumber.

"Once that baby goes down, I know she's gonna be up early," he quipped. "So, I gotta get to sleep as soon as I can."

Allen added, "To know that I'm gonna get a good night's rest and feel up fresh and rejuvenated, that's well worth it."

For a closer look at Allen and Steinfeld's relationship and journey to baby, read on.

Following Josh Allen's breakup with longtime girlfriend Brittany Williams, the Buffalo Bills quarterback stepped out for dinner in NYC with Hailee Steinfeld. 

Two months later, the duo confirmed their relationship while kissing on vacation in Mexico. 

Nearly a year after the duo first sparked romance rumors, the athlete and the actress made a rare social media appearance while helping his sister, Nicala Madden, reveal the sex of her baby in an adorable Tiktok video. 

The Edge of Seventeen star and the NFL player went on a romantic outing in matching khaki outfits during Paris Fashion Week. 

The NFL star made the couple's romance Instagram official, including their glimpse of the Eiffel Tower in his July 23 photo dump.

Included in that same post, the "Starving" singer squeezed in for a photo with Josh's family. 

"Mr. Hard Launch," as reporter Kay Adams called him on her Up & Adams show, bashfully admitted "we love love" when asked about his and Hailee's relationship. 

Hailee and Josh confirmed they were engaged in a November 29, 2024 Instagram post showing the athlete getting down on one knee as the Oscar nominee leaned in to give him a kiss. They captioned the post with the date of their major milestone: 11-22-24. 

Just a few months after their engagement, Josh and Hailee officially made their red carpet debut at the NFL Honors, where he was named MVP. And during his acccepance speech, he gave her a heartfelt shoutout.

"You’ve been my rock and my best friend," he told her. "I would not be standing on this stage if it weren’t for you.”

They said "I do" in a stunning California wedding ceremony, where she donned a strapless bridal gown with elbow-length gloves.

The couple announced they're expecting their first child with a snowy maternity shoot in her Beau Society Substack.

The pair announced the birth of their first baby together on April 2. 

“Our baby girl has arrived!!” the couple wrote on Hailee's Beau Society Substack. “We’re feeling incredibly grateful and blessed and savouring these early moments. Thank you so much for the love and well wishes.”Â