This is such a personal decision. I’m divorced, having married at a stupidly young age, and although I don’t regret it, I have very different opinions on marriage now to my early twenties.
I’m in a loving and committed relationship. We’ve been together 5yrs. He’s honestly my soul mate. But I feel no rush, no need to marry. I don’t think I’d take his surname even if we did; I’m well known in my professional circle, my nickname is based on my family name, so much of my personality is wrapped up in being me.
We are now TTC. We’ve talked about naming, and of course OH wants our baby to have his surname. He has two other children and they have his surname (despite their mother briefly registering them with a school under her maiden name) so it follows (in his mind, I do see his point) that his third child has the same surname.
But I feel very strongly that baby should have my surname. I am unlikely to have more than one, and my sister has married and given away her maiden name for her husband's. My brother won’t have children. I could carry the last in our line...
Apart from that fact, I’m riding on the feminist wave... I’m not into patriarchal tradition, I beat a different drum. It’s 2018! Why should I give away my identity (and part of my child’s) because that ‘just what’s done’, I’m outspoken enough to think differently.
Do what you want. Don’t be told.