The 46-year-old singer denied she and the 39-year-old country star are engaged on Wednesday's episode of The Tommy Show following reports she and Shelton are considering marriage and having children.
"Can you imagine the amount of gossipy, weird stories people make up? To me, it makes me laugh every day," Stefani said. "I actually do Google my name just so I can see the next one that's gonna happen, because it's gotten so out of control."
"I think the best part about it is it's hilarious. The worst part about it is some people actually believe that stuff," she added. "I mean, let's just look at the last year. Let's just take it one day at a time. Everything's crazy right now. So no, absolutely not [engaged]."
Us Weekly had reported Stefani and Shelton are "getting married" on its June 13 cover. Sources told the magazine Stefani also "wants to give Blake his own kid," claiming the mom-of-three is hoping for a baby girl.
"[Gwen] is totally smitten and wants to have a baby with Blake," an insider said. "Gwen is trying to get pregnant."
"[They] talk openly about their future together. They say things like, 'When we get married...' all the time," another source added.
Stefani and Shelton confirmed their relationship in November after splitting from their respective spouses, Gavin Rossdale and Miranda Lambert. Stefani, who shares three sons with Rossdale, celebrated her eldest's 10th birthday with Shelton in May.