The author reflects on the fulfillment and community they’ve found through connecting with other families who, like them, have only one child. They describe a co-parenting rhythm that emerged naturally with another family, where informal childcare swapping and shared experiences became a routine part of their lives. This supportive network of “one and done” (OAD) families has provided a sense of solidarity and practical benefits, such as arranging playdates and sharing parenting strategies.