OKay my sons first birthday is coming up on Saturday, were having a few people over and were just gonna order pizza and have cake and ice cream...
Now i have stayed on plan since January 1st, not even screwing up once, but i would like to just enjoy myself at the party and eat the food and spend time with my family.
Do you think this is a bad idea, i dont know why im so worried but i have been going over it in my head the past 2-3 days, i dont know why its this hard!

Just have it in moderation and don't go crazy! So long as your not eating a whole birthday cake or large pizza by yourself, I think you'll be fine!