Am I missing something? I'm seeing "Mommy" everywhere, where "Mummy" ought to be, in places like; "First time Mommies" and "Puppy Mommies".
I thought that "Mummies" was British English, and "Mommies" American.
Perhaps ""Mommies" is more correct in its graphological relationship to "Mothers". Maybe it doesn't matter, but it's causing me a certain amount of pain.