BitOfFun - I just don't like that label, I suppose. Presumably we all have different perceptions of what 'earth mother' means. But, more importantly, people use it to imply certain things about a person. In my experience, when someone calls someone an earth mother, they are very often mocking them for being...
...a bit hippy...?
...someone overly idealistic and unrealistic about childbirth and parenthood...?
...someone a bit conceited who considers themselves to be a natural, marvellous parent...?
Perhaps some people do mean it in a positive way. They possibly mean someone extremely dedicated to their children, very keen to be close to their children (sometimes physically), very keen on all children...?
In the first instance, I would take offence, yes. In the second instance, I perhaps wouldn't be offended but I'd be a bit puzzled. I don't think I fit that mould: I came very reluctantly to motherhood, in fact, and though I enjoy a close relationship with my daughter, I'm still rubbish with other children...