Invitation question

Sa

I am looking at invitations for our wedding to get an idea of what I like.

I am divorced and still have my ex husbands last name mainly because I was too lazy to change it back since I’d have to change so many things (it isn’t cheap either). With our invites should I put my maiden name or my ex’s last name..? I don’t have my last name on any of my socials and I haven’t since I filed.