Arrgh! Have you told your family to stop sharing personal details about your plans? If you have, and they haven't, then you can't share anymore details with them, period. Sorry that you're having a tough time over this. Just know that what you're going through is very common as DWs are still rather "new" and some people just don't know how to react to them. Hang in there and plow ahead with whatever makes you and FI happy as after all, it's YOUR wedding, not anyone else's!!!