Update: Louis has confirmed that he is a father with this tweet posted yesterday:

One Direction star Louis Tomlinson is the first member of the British boy band to become a dad.
Louis, 24, confirmed in August that he and Briana, who are not currently together, were expecting a baby.

Now, One Direction fan Twitter account, @1DExclusiveInfo, claims that Briana’s grandmother confirms she has given birth to a baby boy. The Sun is also reporting that the pair have chosen the unique name of Sydney Rain for their son, although they’re still deciding on whether he will take Tomlinson or Jungwirth for his surname.
“Louis and Briana are yet to file a birth certificate but they’ve agreed on the name Sydney Rain,” The Sun’s source says.
“It will be rubber-stamped in the next five days.”
While it’s difficult to verify the @1DExclusiveInfo account, Briana, 23, has been posting up a storm on Instagram about her impending birth.

Briana posted this image of her baby bump five days ago, while her grandma appears to have revealed the baby boy has arrived.
“So ready for you my love!” She declared five days in a post accompanied by her burgeoning baby bump.
It’s believed that Louis and Briana met in a LA club Bootsy Bellows, when a friend introduced them.
The pair embarked on a short fling, which is said to have ended before Briana discovered she was expecting.

Louis and Briana on a night out.
At first, One Direction’s notoriously protective fans questioned Briana’s motivation when she hooked up with Louis.
But it soon emerged that while she vaguely enjoyed the band’s music, she was no fan girl! In fact, she had only “recently been to a concert” before being introduced to Louis through a mutual friend.
The pair are no longer together, however sources close to both Louis and Briana insist they plan to raise their baby amicably.
“Although they’re not romantically involved, Louis thinks Briana is a great woman and will be a fabulous mother,” a source tells The Daily Mail.
Louis is currently said to be dating Disney actress Danielle Campbell.