You are correct. Apparently, the season 8 episode "The Hearth's Warming Club" disproved the fan theory of changelings being eusocial, or having one reproducing female like ants and bees. The episode showed Ocellus having normal parents,

so changelings do indeed reproduce like mammals.



I know the fandom likes to come up with possible theories about the show, but that changeling theory isn't true. I'm

fine with it not being the case, though.