Genuinely don't care if you ain't reading all of this.
Go ahead and sue me, but there are six. Gender is based on identity rather than biology. There are three pronouns, excluding it/its as that would be transpecies and would default to being nonbinary, and it's entirely possible to basically mix and match to what you'd like to be called. This will likely worsen reactions to this comment, but there are also three biological sexes. Although extremely rare, some folks are born biologically nonbinary. Cry about it.