Could it be true that Gwen Stefani, who has been rumored to be pregnant, is jealous of Blake Shelton's ex-wife Miranda Lambert?

Despite the unending reports of the 39-year-old country crooner's obvious admiration towards the 46-year-old No Doubt vocalist, it appeared that she is still insecure of her new beau's former flame.

According to a report by "Life & Style" magazine, as shared by Hollywood Life, "Gwen is insanely jealous and on edge."

"She's terrified Blake might still love Miranda and want her back," a source of the publication reportedly claimed.

However, Hollywood Life reported that amid rumored pregnant Gwen Stefani's doubts and jealousy towards Miranda Lambert, they are definite that Blake Shelton "is totally infatuated with her."

The site further took note of instances wherein "he just can't get enough of going over to her chair on The Voice to show her love and affection during commercial breaks."

In the meantime, Hollywood Life shared in a separate report that a source of "In Touch" magazine revealed that the former wife of Gavin Rossdale has just asked the "Bringing Back the Sunshine" singer to marry her.

"Blake asked [Gwen] what she was thinking and Gwen just blurted out, 'Let's get married!'" an insider allegedly dished. "Blake didn't even blink and said, 'Let's do it'! That's how it started and now they're not looking back."

With the speculations about Gwen Stefani being pregnant, Miranda Lambert's ex-husband Blake Shelton took to Twitter to air his thoughts, Entertainment Tonight dished last month.

"One of his followers even made a joke about the baby rumor, writing: '@blakeshelton I just read that I am having your love child,'" the report stated, to which the country music superstar replied, "Ha!!! You too!!! Damn I'm fertile!!"

Do you think Gwen Stefani, whether pregnant or not, would end up in marriage with Miranda Lambert's ex Blake Shelton soon?