Kelly confides in Brenda and Donna about her mother's pregnancy. David tells Donna that Mel is planning to propose, then learns about the pregnancy. He doesn't share the news with his father, who is clueless about Jackie's condition. Jackie assumes that Mel only wants to marry her to fulfill his obligation, so she dumps him. Andrea shows an amazing capacity for picking winning race horses, to Nat's benefit. Nat takes Brandon, Andrea, and Steve to the track so that they can all reap the rewards of her gift. Dylan refuses to reveal his Valentine's Day plans to Brenda.