When Brett Young inserted the heartbeat from his wife’s first sonogram into the intro of his new single, he created an appro- priate sonic atmosphere for “Lady,” a song that celebrates both his daughter, Presley, and her mother, Taylor.

But the move also inadvertently emphasized the sound of a new baby boom in country music. Joining Young on the Country Airplay chart are two titles in which an unplanned pregnancy plays a vital role: Jake Owen’s “Made for You” and HARDY’s “One Beer,” featuring Devin Dawson and Lauren Alaina. Addi- tionally, Lady Antebellum’s recent release, “What I’m Leaving For,” captured the cycle of doubt and reassurance in a working mother who is carrying another child. Plus, Black River plans to introduce 19-year-old MaRynn Taylor with the June 5 release of “Dads and Daughters,” a song that begins with a hospital delivery, to digital service providers.