Sources tell Star that just last month before the Jude Law-Nanny cheating scandal broke loose, Miller and Law announced their pregnancy to family and friends at their London pad. Sienna was supossedly nine weeks pregnant.

"She [and Jude had] discussed names for the baby," a friend says in Star. Now, Law "had destroyed any chance they had of bringing up the baby together."

While he was married to Sadie Frost, the mother of his three children, Law cheated with no less than six different women - a model, a celebrity's assistant, two A-list stars, a rock star's ex-wife and a lap dancer, according to Star.

Pearl Lowe claims her and her rocker hubby Danny Goffey wife swapped with Jude and Sadie.

Law denies these claims, although he admitted and publicly apologized to Miller for having an affair with Daisy Wright, 26 the children's nanny. The affair soon ended after one of Law's children caught "Daddy and the nanny in bed." Wright was fired but created havoc after her story appeared in London's Sunday Mirror.

If you recall Pearle Lowe was the same woman that had Gavin Rossdale's lovechild.

Gwen Stefani was devastated by the news since she had no idea Gavin had a 16 year old daughter Daisy with Lowe.

The nanny claims, "He's a great lover and knows how to satisfy a woman."

Sienna Miller seems to be in the most difficult of places currently. After finding out of the affair in the newspaper Sienna removed her engagement ring and was deeply hurt by the news.

"Jude had offered [Sienna] the moon, but Sienna believes he's a sex addict who's incapable of being faithful," a source tells the mag.

"If [Jude] wants to play an active role in her child's life, she's not going to stand in his way or put up a legal fight," says a friend. "But they will never be under the same roof."