Gwen Stefani Baby Bump Selfie Makes Waves

Gwen Stefani is keeping her fans up-to-date about her third pregnancy with posts to Twitter including a "selfie" this week.

Like so many other celebrities before her, the No Doubt singer took to Twitter with a photo taken of herself, by herself on Tuesday, Jan. 21.

The photo revealed Stefani dressed in all black and high-heeled shoes, accentuating her burgeoning baby bump.

"Bump it #allblack #inappropriateshoes #capturethemoment #miracle," the singer wrote in the caption of the photo.

The 44-year-old famous blonde and her husband Gavin Rossdale are already parents to two sons; Kingston, 7, and Zuma, 5.

Rossdale, who is the lead singer of the group Bush, also has a 24-year-old daughter Daisy Lowe from a previous relationship.

Although Stefani did not formally announce her pregnancy, the singer recently revealed that the baby on the way is a boy.

"I was ready to hand over the crown," Stefani captioned a photo of herself wearing a crown in Instagram. "But I Guess I am still queen of the house. #itsaboy #surroundedbyboys."

Stefani and Rossdale have been married for 12 years. In addition to posts about the new baby, the expectant mom frequently shares insight to her family life in Instagram.

"#bakin coffee cake. Messy me," she posted along with a photo on Jan. 19th.

Meanwhile, Stefani's baby bump selfie comes just days after a similar post by Kristin Cavallari on Saturday.

The former "The Hills" star posted a photo from the gym with the caption, "Gym selfie… Baby bump getting big."

Cavallari is expecting her second child with husband Jay Cutler. They are already parents to one-year-old son Camden Jack, but have not revealed the gender of their second baby.

However, the expectant mom admitted that she would like to provide Camden with a sister.

"Obviously, I want a little girl, but if I had another boy I would be so excited as well," she told E! News.

Both Cavallari and Stefani's pregnancies coincide with several other pregnancies in Hollywood today. Actresses such as Emily Blunt, Olivia Wilde, and Drew Barrymore are also expecting children this year.