that is point, but also remember that because of the king only being a hundred year occurance, who knows how much impregnating goes on before the current one kicks the bucket. doesn't help that the one male gerudo in canon we see instead chose to speed up the process through the triforce before...
of note is that we never see the previous gerudo male in canon (closest we get is cadence of hyrule, which doesn't count) so there's no way to confirm if this is the case or not.