THEY say a picture says a thousand words - and if we were Kevin Federline we'd be very worried indeed.

Pregnant Britney Spears has posted an extraordinarily rude message to her waste-of-space hubby on her website... giving him a one-fingered salute.

After days of speculation that their stormy 20-month marriage has hit the rocks - with no denials from either side - she seems keen to display her anger and bitterness.

And, in yet another sign that Federline's meal ticket has expired, we're told that mum-of-one Brit has asked her own mother Lynne to move into her mansion to keep her company.

But none of this seems to worry the ferret-faced freeloader. Feds has been telling friends: "Don't worry, she ain't got the balls to leave me." Charming!

Brit, 24, has slapped the bizarre photo of herself on her website under her poem Remembrance Of Who I Am - a thinly veiled confirmation that her marriage to would-be rapper Federline, 28, is all but over.

It reads: "No more chains that you gave me. My crown is back and it's way too high for you to be in my presence."

We told last week how the couple - who have an eight-month-old son, Sean Preston - had drifted apart after a series of furious rows. Brit despaired of the ex-dancer smoking dope and drinking with his friends, who she loathes, and banished him to a selfcontained bachelor flat in the basement of their Malibu home.

A source tells us: "Britney is at her wits' end. She's furious with Kevin. And as usual, when things go wrong for her, her mum Lynne has stepped in to offer support.

"Brit has some very serious decisions to make and she knows her mum is the best person to help her make them. She really wanted the marriage to work for her family, but it seems harder by the day."

Despite all signs to the contrary, arrogant Federline believes she will come crawling back for him. He has told pals: "She doesn't have the guts to leave me, she's been threatening to divorce me since the honeymoon."

The former dancer has already planned his next career move.

We hear he's launching his very own urban street fashion line.

"Kev thinks that because he shops so much and gets his picture taken by paparazzi that people would want to dress like him," our Californian confidante spills.

"He has already had talks with a number of companies to get his clothes range out there."

Well, he'll need all the money he can get when Brit finally kicks him to the kerb!