i think shes not a black pastel- otherwise u would maybe have a super in there.
i have a friend, who breed 2006 a het pied x pied. he get 3 eggs and were sad that she only laid 3 eggs. but from these 3 eggs, 3 piebalds hatched out.
what i mean is, that the odds are not predictilble. statistic is just statistic- but nature does what she want.
when u buy a pair of hets and breed em together, and u get no visual morphs out of the egg, doesnt neccesarly mean, that the seller sold u normals as hets.
the odds are so crazy. in both ways- u can get 0 visuals from a het to het breeding, and u can get all visuals from a het to het breeding.
i think the same happend with our clutch- simple as that: the odds god was on ur side.
congrats!