Is Gwen Stefani pregnant?

One month after Life & Style exclusively revealed that she was trying to have a baby with her boyfriend Blake Shelton, Gwen seemingly debuted her baby bump on Instagram! In the shot, the “Hollaback Girl” singer posed sideways with talk show host Ellen DeGeneres — and all fans could notice was her possible bun in the oven.

MORE: What Did Gwen Stefani Look Like Before Plastic Surgery? See Pics!

“Definitely looks like a baby bump. If so, that’s wonderful,” one fan wrote, and other commenters agreed.

The mom-of-three already shares 10-year-old Kingston, eight-year-old Zuma, and three-year-old Apollo with her ex-husband Gavin Rossdale. But the 47-year-old has been in a steady relationship with country crooner Blake Shelton since the fall of 2015 — and Life & Style previously revealed that the couple is looking to take the next step in their relationship. Gwen originally planned to wed her 40-year-old boyfriend sometime this year, but they put their wedding plans on hold to focus on getting pregnant!

"They’re trying to have a baby first,” an insider close to Gwen said. “That’s their main focus right now. She’s determined to have another baby and carry it herself, even though Blake has said it doesn’t matter if they adopt or get a surrogate.”

MORE: Gwen Stefani's Kids Are Growing up Fast — See What They Look Like Now!

The couple — who met on set of NBC’s The Voice — was previously trying to get pregnant via in vitro fertilization, but they didn’t have any success so Gwen decided to try again the natural way.

"Physically and emotionally, it was just a lot for her," the source explained. "So she’s trying to get pregnant naturally for the time being.”

After more than a year of dating, Gwen and Blake are still completely smitten with each other. They couldn’t stop flirting during the season premiere of The Voice last month, with Gwen sitting in her boyfriend’s lap and walking up to him in the middle of the show to tell him he’s “cute.”

Scroll through the gallery below to see Gwen and Blake’s cutest moments as a couple!