What episode does Amy and Ricky talk about the baby?

In "The Secret Life of the American Teenager," Amy and Ricky discuss their baby in multiple episodes, but a key conversation occurs in Season 1, Episode 18, titled "The Big One." In this episode, they confront their feelings and responsibilities regarding the baby, highlighting their evolving relationship and the challenges they face as young parents. Their discussions often reflect their growth and the complexities of their situation throughout the series.