Water breaking?

JSmiles • Expat traveling the world. Married. 05/07/13 #Interracial love👩🏽👱🏻 Mommy to a baby girl. Expecting baby #2 🤰🏾
I don't want to sound dumb, but why do some people refer to their water breaking in plural ways? Like I've heard people say, "My waters." Or they will say "they" Please someone explain? I'm curious.