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Sad news for singer Lily Allen: She has suffered another miscarriage, her rep announced Monday.

"It is with great sadness that we have to confirm that Lily Allen and Sam Cooper have lost their baby," her rep tells "The couple ask that their privacy be respected and that they be left alone at this deeply distressing time. No further comment will be made."

She was six months along with boyfriend Sam Cooper's child.

"Obviously this is a difficult time for them both," a source tells Us. "Both Lily and Sam are devastated."

Nearly three years ago, Allen, 25, suffered a miscarriage during her relationship with musician Ed Simons.

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Allen has said having children is "ultimately my main goal" in life.