COURTENEY COX - COURTENEY COX DESPERATE TO HAVE A BABY

FRIENDS beauty COURTENEY COX is desperate to get pregnant after her husband DAVID ARQUETTE's sister gave birth to another child.

The SCREAM co-stars have already endured two miscarriages.

And now PATRICIA ARQUETTE recently gave birth to her daughter HARLOW, Courteney's biological clock has started to tick very loudly.

A source tells American tabloid the GLOBE, "The whole family is in love with his baby. She's so adorable, everybody is celebrating Patricia's latest joy.

"Courteney is delighted too, but makes her and David want to have one of their own more than ever."

Sources say Cox, 38, and her 31-year-old husband, who have been married since 1999, bought a $10 million (GBP6.6 million) beach house in Malibu, California, because it would be an ideal place to raise a family. But they're yet to have a baby."

A pal notes, "She's battling fears that she'll never be able to have a baby. But she and David have vowed to keep trying."

After a reportedly failed attempt at in vitro fertilisation recently, the actress is bravely gearing up for another try.

A source says, "Right now Courteney is relaxing and trying not to be agitated by her fertility problems."