Wholesome 15 year old Amy Juergens finds out that she's pregnant, sparking panic among her two best friends, Lauren and Madison.
Grace is torn between forgiving Jack and moving on; Adrian longs for a relationship with Jack; Ben is shaken by the rumor about Amy.
Ben and Amy share a kiss; Amy lets Ashley in on her secret but keeps her parents in the dark; Adrian's jealousy grows.
Grace and Jack's well-laid plans crumble; Amy contends with issues between her estranged parents; Jack turns to Adrian for comfort.
Amy considers giving up the baby; Amy and Ashley's father leaves; Adrian and Jack spend more time together.
Amy reveals the truth to her mother; students believe Amy is terminating her pregnancy.
Amy considers a change in her living situation; Ricky has a hard time accepting responsibility.
Amy's grandmother visits and offers help; Adrian and Grace become friends.
George spends time with Amy and Ashley; Tom orders pizza and a stripper; Lauren is caught kissing Ricky.
Amy decides on her future school plans; Adrian's mother encourages her to have a relationship with her father; Alice and Henry's relationship deepens.
Adrian's father calls the police after his daughter disappears from school; Grace is pressured to wear her purity ring; Amy and Ben decide against having sex.
After being informed that she will need to find a job to support her baby, Amy makes a rushed decision with Ben.
Amy and Ben learn their marriage is not legal; Anne and George share a brief reconciliation; Tom wants to marry his new girlfriend.
Ricky's father arrives in town with a plan for his son and the baby.
Amy has a chance to learn the sex of her baby; Ricky breaks up with Grace to protect her from his father; Jack makes a discovery while performing community service.
Amy and Ricky discuss adoption; a co-worker approaches George about adopting Amy's baby; Adrian tells Grace that she can date Ricky again.