For those who aren't married or who are married but have kept their maiden names - what is the plan for last name of baby? Do you have other children from a previous relationship? Will your child(ren) then have different last names? I'm super confused about what to do myself.. I have been married but reverted back to maiden name. I also changed Ds last name back to my maiden name (with approval of his dad).. Now that I am expecting with OH and not married I feel strange considering giving baby OH last name as I still don't entirely feel like a family unit. I am also concerned about Ds#1 having a different last name than his sibling (major concern). Of course OH issue is that he wants his child to carry on his family name as he is the only one in his family to do it.. I considered a hyphenated last name for baby with OH last name ending last - Seems like the only solution at this point where we both win - ?? Anyone going through something similar or am I the only over-thinker?