Cardi B is out and about, and her trip to a New Jersey gym has us wondering … is there a new baby boy in her life?

In the short video — shot Thursday in Tenafly, NJ — Cardi’s engrossed on her phone while sitting on a bench. Eyewitnesses tell us she was taking a break from her workout.

Interestingly …. she was wearing a sports bra and leggings … not hiding her midsection.

We’re told she hit the gym with two trainers — one lady and one dude — and she was in grind mode.

As you know … this would be Cardi’s fourth child — her first with NFL superstar Stefon Diggs, who she started dating shortly after she split from her ex-husband, Offset. She even went to one of Stefon’s games to watch the New England Patriots, and she sat in the owner’s box with Robert Kraft.

Diggs revealed the two were expecting a baby boy … who’s already got some onstage experience BTW — ’cause his mom rocked the Global Citizen Festival in NYC in September.

It’s going to be a busy few months for Cardi … who will have to juggle the responsibilities of having a newborn while also preparing for her “Little Miss Drama” tour which is scheduled to kick off in Palm Desert on February 11, 2026.