Miss or Ms if you're not a Mrs?

[Hejustdoesntgetit]

I just wondered what non-married women go by once they reach a certain age. I'm early 30s and quite happily go by Miss. But is there a point at which you switch to Ms or is it reserved for divorced women (sorry I'm a bit naïve about this). I'm currently pregnant and keep getting referred to as Mrs which makes me laugh as I have no intention to marry in the foreseeable. I also prefer to be called by my first name and make it known when needed.

Is there a point you switch or do I remain a Miss forever? As stated already I don't actually mind I'm just curious.

@helmetbymidnight I'm not sure I understand what you mean. I'm aware of different titles but not necessarily aware of who chooses what and why. It isn't particularly on my radar as I'd prefer to just use my first name. But since pregnant the assumption has been I'm married and the use of Mrs is exclusively used. I don't particularly mind. I find it amusing. I suppose I was after what others choose. I will remain a Miss for now as I can't be bothered to amend anything.

Ms isn't new.

I'm surprised it's even something to debate.

When you're too old to be called Miss, you become Ms

Simple

When are you "too old" to be called Miss though?