Fall Out Girl?

Ashlee Simpson and Pete Wentz should start stocking up on everything pink -- the couple is having a girl, an insider tells Star. We're not 100 percent sure it's true, but hey -- there's a 50-50 shot it is right! The bundle of joy is due on Halloween. "Ashlee and Pete are on cloud nine," the source says. "The doctor told them they actually conceived the baby just before Valentine's Day while they were on vacation and has given them an initial due date of Oct. 31. When Pete heard he might have his baby on Halloween, he went nuts. For an emo-rocker type like Pete, that would be just too perfect!" OMG, too cute!

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