Hi Charlotte,
my husband knew and knows I'm an alcoholic, yet he, as a non alcoholic, still has a hard time accepting the changes it brings. Maybe your husband is scared too. You will be different not drinking and that will take getting used to. If you can and this was my approach, tell your friends, make a face book announcement that you don't drink anymore and for them to respect that decision. Give reasons you and you alone are comfortable with. True friends will stick with you. Of course you may choose not to tell anyone but your husband; however I agree with Anna and recovery being an honest life.
It's so nice not having to hide anything and everything anymore. You will be so much happier. Oh and personally, I wouldn't have gone to any event so early in recovery. I would have been too tempted. Please let us know what you decide and good luck.