I have 2 DC from past relationship. They have my exH's surname, as do I. It's a fabulously cool and unusual surname. Let's say it's Hendrix.
I'm now 24 weeks pg with DP's baby. We have no plans to get married. He has a regular boring surname like Smith.
I can't very well give DC3 my surname because it's my exH's name and neither DP nor exH will be happy with that.
But if I give DC3 DP's surname, it'll have a different surname to me and I don't like that. If I revert to my maiden name, I'll have a different name to DC 1&2 and, anyway, I like being Mrs Hendrix! I don't much like Mr Hendrix but I like his name.
I've thought about hyphenating my surname so it has both my DCs' surnames in it but Hendrix-Smith doesn't really work. And wouldn't it be a bit weird to take DP's name when we're not married? Has anyone else done that?
If only I'd stuck to my feminist principles and stayed Ms Rumblebutt.