Shailene Woodley, Secret Life of the American Teenager Shailene Woodley, Secret Life of the American Teenager

Secret Life of the American Teenager is going back to band camp to show us the day Amy got pregnant, series creator Brenda Hampton tells exclusively.

The episode will air the week before the March 23 season finale, in which Amy (Shailene Woodley) will finally give birth to the baby, Hampton said in an interview Tuesday.

"It's a really fun episode," Hampton said. "You see how she got into the trouble she got into."

The episode will also be the first directed by John Schneider, the Smallville and Dukes of Hazzard star who plays the overprotective father of Grace — the perky cheerleader now getting something started with Ricky, the father of Amy's baby.

The band camp sequence will take place in a flashback that shows Amy didn't put much thought into her decision to have sex with Ricky, Hampton said.

"It seems like the smallest of decisions when made," she said.

Secret Life, which returned for the second half of its first season Monday, has earned ABC Family the highest ratings in the network's history. Its midseason finale, which aired Sept, 9, earned 4.5 million viewers over 3.2 million for the CW's 90210.