The gender of Louis Tomlinson and Briana Jungwirth's baby has been revealed. A source claimed the singer and his lady friend is expecting a baby girl.

A source told InTouch Weekly that "Louis' family is thrilled" over the news. Briana is said to be "over the moon" as well with the baby's gender.

"They would have been happy either way, but they know he will be a great dad to a daughter because he has six sisters, the source said.

Briana and Louis' family are believed to be so excited over the arrival of the baby girl that they are already thinking of having an all-pink baby shower. Having a daughter has reportedly also brought Louis and Briana, who are not even a couple, closer together.

"She's gone to London to support him while he's on tour, and Louis plans to be there for the birth. They're trying to make things work," the source further revealed to InTouch Weekly.

According to Hollywood Life, Briana has been supportive of Louis even through her pregnancy. She was there to cheer on her baby daddy at the One Direction show in London on Sept. 24. The 23-year-old reportedly caused a commotion when she was spotted entering the O2 arena with Louis' family. A photo shared by the site shows Briana, dressed in a black top, all smiles as she stands along with the crowd to watch the group perform.

Much like Briana, Louis has reportedly been also supportive of the hairstylist's pregnancy. A source told Hollywood Life exclusively that he's been very involved in every aspect of Briana's pregnancy.

"Louis has been really involved with the details of his baby to be. He knows when Briana has doctor visits, and always wants to know all of the details. He's even asked Briana to text him photos of the sonogram," the source said.

Liam Payne also mentioned in a previous interview with Attitude magazine (via Hollywood Life) how Louis is "very happy about becoming a dad" despite rumors suggesting Briana's pregnancy is fake. Simon Cowell had also expressed his support for the 23-year-old singer when he first learned about Briana's pregnancy.

According to Now Magazine, Simon revealed he was one of the first people Louis called during an interview with The Sun's Dan Wootton. The "X-Factor" mogul said that he had told Louis to "man up" and take responsibility for the Briana's baby. He reportedly also told Louis that he is fortunate to be able to look after the baby himself.

"But I also told him that I've received bad calls in my life but this is not one of them. This is your business but I'm here for you," Simon told Wootton.