Well...I think you hit the nail on the head when you mentioned that you didn't really care about the bday party anyhow, that it was really more about having to be guilted by your mother about you not making your son go.
Would you have expected him to go if you had received 2 weeks notice??? If so, then quit stressing over it - just tell your Mom that you didn't have enough notice for the party - period, end of story.
Life is too short to waste it trying to please everybody else.
Would you have expected him to go if you had received 2 weeks notice??? If so, then quit stressing over it - just tell your Mom that you didn't have enough notice for the party - period, end of story.

Life is too short to waste it trying to please everybody else.