Just seen a suggestion from Chaffinch on an Animals and Nature thread that Midlanders use 'mom' instead of mum; I'm from the Midlands and have never noticed this; definitely not in writing and acn't say I've heard anyone pronounce it this way, so just wondering if anyone else has? Also; apart from America do any other English speaking countries use mom instead of mum?
I too was born in Leicester and spent some years in Warwickshire. Never heard 'Mom' being used, but have heard 'Mam' further north. You learn something every day.