I've wished since ds (now 4) was a few months old thatI'd given him a second middle name or used a different middle name. I called the registry office when he was just over 1 and was told i was too late to get a new birth certificate and has to be changed by deed poll. I'm still wondering whether to as love the name he didn't have (felt it was too unusual when we named him, therefore didn't used it)and not having anymore children so can't use it next time!