Jude Law is set to become a father for the fifth time.

According to The Mirror, the actor's ex-girlfriend Cat Cavelli is five months pregnant with his child - with pals adding she is "delighted".

She has also told friends that she "can't wait" to be a mum for the first time.

[related]The 23-year old singer - real name Catherine Harding - is no longer dating Jude, but the Sherlock Holmes star has vowed to fully support her financially and will take an active role in their unborn child's life.

A source close to Cat told the tabloid: "She is around five months pregnant but she and Jude are no longer together. But, they are both determined to be good parents to the little baby when he or she is born early next year.

“It all happened very quickly. They met a little while ago and fell for one another, then Cat told friends that she was going out to Prague, that's when it emerged that she was in a relationship with Jude."

They continued: “Sadly they are no longer a couple but that they are both so determined that the baby will be loved very much by both his or her parents.

“It is easy to see why Jude fell for Cat, she is beautiful, she is the person who when she walks in a room you just think 'wow, look at her.”

Jude has three children - Rafferty, Iris and Rudy - from his previous marriage to Sadie Frost and also has a four-year old girl called Sophia after a fling with American model, Samantha Burke.