Would help if we knew more about your fitness level and running experience (is this your first or 50th HM?) but in general, missing a week of training isn't goint to hurt much. The lost training may be partially offset by the extra rest and fresher legs come race day. Do whatever runs you have scheduled for this weekend. On Monday if you feel you need to add a mile or two to what you originally planned, that's fine but after that, just follow whatever your original plan recommended.