Mum, mummy, Ma, Mae before going to school.
Mom, mommy and mother after going to school and associating that with the norm.
Mumz, Momz, Mamz, Maaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaez (in the longest most whiny tone you can imagine) as an adult.
Honestly not sure how the adding the 'z' thing at the end happened but it did.
Outside my household everyone seems to use mom the most often (though I have heard the others used as well)
(Canadaland here, but both my parents are immigrants from different countries Mum is more normal for my mom's side and mae is more normal for my dad's side.)