My kids have DH's surname - even though I kept my maiden name when we got married.

Some days I feel bad that I don't have the same surname as my children, but only when I get those "looks" from people who think I'm a single mum with a million children to a million different fathers

I like my surname - I didn't keep it for any particular reason, just the fact that I hated changing back my name after my first marriage ended. So I swore I'd never change my name again.