Life & Style has exclusively learned that One Direction’s Louis Tomlinson has called it quits with pregnant girlfriend Briana Jungwirth.

RELATED: One Direction is Taking a Break in 2016

louis tomlinson

“He dumped her,” a source tells Life & Style. Even worse: Briana — who’s due in January and had hoped he’d propose to her before their baby’s birth — didn’t see it coming.

“They had been trying to work things out the past few weeks during his One Direction tour. He even introduced Briana to his mom, Johannah,” the insider shares.

RELATED: One Direction's Louis Tomlinson Isn't the Reason His Father Tried to Commit Suicide

Although Louis doesn’t see his relationship with his baby mama working, he has "promised to love and support their child financially,” the source adds.

For more on all of your favorite celebrities, pick up the latest issue of Life & Style Weekly, on newsstands now!