The document discusses the importance of understanding a baby's movement patterns during pregnancy, noting that while healthy babies do not move constantly, significant changes in movement may indicate potential health concerns. It emphasizes that mothers typically begin to feel their baby's movements between 16 and 22 weeks, and those movements can change as the pregnancy progresses, especially in the last weeks before birth. It advises mothers to contact their healthcare provider if they notice any decrease in the frequency or strength of their baby's movements.