I see like 7 or 8 when Ducky first starts to hatch…yet when her mom or dad brings her back, only three have hatched, and it’s hard to tell, but it really doesn’t look like there are still any unhatched eggs.
Then at the end of the film there’s four siblings that she introduces to Spike…so, either there was another, or she had another sibling since then?
And then the sequels make it even more confusing by having her say, “I’m one of 13 twins, 13 of us hatched at the same time…” This line has always confused me. Even assuming there are siblings we never saw in the original film, it definitely looked like there were less than 13 eggs.
And this isn’t even getting into the later batches of siblings she has who are born in movies 2 and 14. Honestly, it doesn’t surprise me that Ducky’s siblings outside of Spike never got any focus like Petrie’s in movie 12. There are way too many to keep track of.