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Celebrities' Most Memorable Pregnancy Announcements

Pete Wentz & Ashlee Simpson

It wasn't long after Pete Wentz and Ashlee Simpson tied the knot in May 2008 that former Fall Out Boy frontman Wentz blogged, "While many have speculated about this, we wanted to wait until after the first trimester to officially confirm that we are expecting our first child. This is truly the most joyous time in our lives and we are excited to share the happy news and start our family."