Vegan

My sister and I decided to go vegan or at least try it for a month or so and see how we like it. The only problem is, we come a family the eats a lot of meat. Turkey day is literally around the corner. How in the heck do i deal with my family that day? I feel like if I call my grandma and tell her I've gone vegan (so she'll know before making the meal), she won't take me serious (I'd be the minority or she'd take it as a phase) or think I'm being boujee/ facetious. Any tips on how to survive the upcoming holidays? How did you family react to your dietary change?