I didn’t tell anyone when my husband and I were dating. I finally told my sister about 6 months later and then my mother about 3 months after that. We didnt go “public” until well over a year after we started dating. We didn’t tell any of our mutual college friends until after we were engaged. We figured if we broke up, it would destroy our close knit cirle if they had to choose sides, so we kept it private (and let me tell you it was funny when the Chabad Rabbi asked me if he could set me up with my husband LOL).
When we went public we went whole hog (is that ok to say on YWN?) and made sure everyone knew. Its always tough to insult people but ultimately you need to do what is best for you. Maybe reexamine situations to see the good/harm that can be caused by telling or withholding information. Sometimes, I tell people earlier than I want because I do not want to offend them and I think they will be hurt more than I want my privacy.
Good luck. This is always tough.