Engaged mom-to-be Jessica Simpson joked earlier this year that every time she tries to plan her wedding, she gets pregnant. "Apparently protection was just thrown out the window," she quipped when Ellen DeGeneres described her as "always-pregnant" earlier this month. For Simpson, motherhood and other life events have come before the nuptials, and she's not alone in Hollywood. Sometimes, the time between him putting a ring on it and walking down the aisle stretches out for a loooooooooong time. USA TODAY's Arienne Thompson checks out some other lengthy celeb engagements.