Amy goes on a date with Jimmy. Meanwhile, Ashley pursuades George to vist Anne to rekindle their relationship, and Griffin sends his cousin Grant to get to know Ashley. Ben visits Grace and tells her that he wants to be friends, and as he leaves, they kiss. At the same time, Amy and Jimmy kiss. After George knocks on Anne's appartment door, Josh answers and explains Anne is with Mimsy and might come back home. While Ricky encourages Amy not to get caught up with Ben and Grace, Adrain's parents tell her they will get married, therefore causing her mom not to take the job offer in New York. Anne tells Ashely that she doesn't think it would be good for her to return home.

Amy visits Jimmy to learn why he never called her; Adrian makes a confession to Ricky.

Ricky, Ben, Amy and Adrian attempt to work out differences.

A messy custody battle ensues as Amy and Ricky continue to disagree over their rights as John's parents. Still angry with Ricky for breaking up with her, Adrian sides with Amy and encourages several of their friends to do the same. Elsewhere, George grows more frustrated with Anne's refusal to get re-married right away. Ben and Grace get closer, and Ashley feels ready to make some changes in her life.

Mimsy returns, and a wedding is held.

Amy is received into a music program in New York City but, she concerns it's too far away to actually be able to move. In the meantime, Jack has to detect a place to live aft he chooses not to move with his parents.

After Amy leaves for New York, Ricky moves into her house temporarily to take care of John, which doesn't please Anne and George, since something appears to be going on between Ricky and Ashley. Elsewhere, Adrian goes to her mother for advice on what to do about her pregnancy, and her parents' differing opinions threaten to split their family apart. Ben also wrestles with the reality of the situation and vows not to let it ruin his future with Amy.

While, Grace tries to find a boyfriend for Griffin, Ashley now has feelings for both Grant and Ricky.

Ricky goes to visit Amy in New York. Meanwhile, Ben goes with Adrian to a sonogram appointment. Jack is torn between letting Madison sleep over and Grace continues to build her relationship with Grant.

Ben and Adrian are thinking about engagement but both have Ricky and Amy in mind when making their decisions while Amy's parents tell her that they plan to remarry. In New York, Amy's fellow teenage mothers take her out for her birthday.

Amy calls Ricky to let him know she's angry that everybody, including her parents, have forgotten her birthday. Meanwhile, Adrian has a medical scare with her pregnancy, which leads to some problems with Ben, and Grace's relationship with Grant heats up. Madison's father finds out some unsettling information about his daughter's sex life with Jack, and as Leo gets angrier with Ben, he gains some perspective on his own marriage.

As Grant and Grace grow, Amy and Ricky try to find out if they should be a couple.

Ashley tries to persuade Ricky to have sex with her and Amy takes a stance against her actions. Anne questions whether George actually wants to get married, contrary to his original claims, and suggests that they finally spit up without hurting their children. Elsewhere, Adrian believes that Ricky is just using Amy for sex and Grace wonders if Adrian is considering marriage. Meanwhile, Amy goes out with Ricky; and Grace and Grant prepare for camp.

Amy wants Ricky to get tested for various STDs, after she sees him talking to someone he used to date. Ben and Adrian's baby's gender is revealed. Amy considers having sex with Ricky.

Jesse makes some decisions about his and Lauren's relationship, now that he is headed for college. Madison becomes interested in a new guy... her boss who is in his mid-20s. Grant tells Grace that he wants her to be tested for STDs before they consider having sex.

Both Amy and Ricky feel under pressure now that Ben has proposed to Adrian, which causes Amy to suggest taking their relationship to the next level. Ben suggests an alternative to a big wedding to Adrian, and Lauren's mother and step-father are having problems.

Ashley starts being home-schooled. Ben and Adrian look for a place to live. Grace worries about the future regarding her relationship with Grant. Jack & Madison take a break from sex. Lauren is crushing on a new guy.

No one is happy about Amy's plans to move in with Ricky -- including Ricky. Leo encourages Ricky to think about college, and Anne accuses Amy of rushing things with Ricky as a way of competing with Ben and Adrian. Madison is uneasy with Jack's decision not to have sex with her, and Grace asks her mother for a sleepover with Grant.

Grace and Adrian shop for a wedding dress, and Amy is cornered into planning a baby shower for Adrian. Grace and Grant have relationship problems.

The entire town is in an uproar over Adrian's impending baby shower.

Adrian hosts a baby shower. Lauren, Madison, Amy, and Grace all attend. Ricky finds out that Leo is having problems with stress.

Adrian makes plans to come back to school a week after the birth of the baby in order to stay on track for graduation. Adrian and Ben both have misgivings before the wedding, and Ricky realizes that romancing Amy may be more effective than pressuring her for sex.

Amy is upset that Ricky is the kind of guy that could never get married, after she realizes Jack has a key to his apartment and she doesn't. Ben and Adrian's wedding reception is held at the school.

Adrian and Ben prepare for the imminent arrival of their daughter. When Adrian experiences discomfort, the couple - believing she is about to go into labor - are instructed by their doctor to leave for the hospital. Ben and Adrian agree not to call anyone until they know more, but as word spreads she is in the hospital, family and friends gather there to share the joyous occasion. But the couple learn some devastating news that will change their lives forever and will need those closest to them for support.

Grace goes away on a medical mission, while Peter suspects the worst.

There's an emergency with John resulting in Ricky & Amy taking him to the ER. Grace meets a new guy named Daniel. Adrian wants Ben to tell her how he really feels.

Adrian comes to Ben's defense as a bunch of students begin to blame him for their daughter's death. Kathleen has an interview at a college. Grace gets pranked by Ricky.

It's graduation day - and both Ricky and Jack have something to say. A divorce attorney obtains incriminating photos at the graduation ceremonies.

Summer school is the backdrop for another series of intrigues: Amy, Madison and Lauren argue, Henry is in the doghouse with both Ben and Alice, and someone is found to be trying pot.

Ricky begins college, where he reunites with an old pal from foster care. Elsewhere, Ben's legal troubles are behind him, but he still must face Leo's wrath; Ethan takes an interest in Kathy; and George makes a promise to Kathleen.

Adrian and Omar think about moving in together; Anne starts to plan Amy's wedding.

Amy and Ricky announce they will get married the day after Amy graduates from high school, but everyone is skeptical that the wedding will actually happen. Grace and Jack announce their engagement, but it's soon clear that Grace is having second thoughts about her decision. George and Kathleen are distracted from their secret plans when their mothers arrive for unexpected visits, but they eventually include their families in a special surprise. Meanwhile, Ethan is jealous when Kathy agrees to help Brian prepare for the spelling bee.