Daren Kagasoff and Shailene Woodley

Get ready to say goodbye to Amy, Ricky, Ben and the gang! The final season of The Secret Life of the American Teenager will premiere on Monday, March 18 at 8/7c on ABC Family, TVGuide.com has learned exclusively.

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On the season premiere, Amy (Shailene Woodley) and Ricky (Daren Kagasoff) continue to plan their wedding, but it seems that Amy's dress choice — a thrift store find — isn't sitting well with her friends and her fiancé. But the more important issue is: Does Amy really want to get married?

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"The girl who grew up too fast has one final secret she can't deny," the promo teases says.

Watch the exclusive first look below: