How should I feel about husband's refusal to get vasectomy?

He was scheduled for a vasectomy yeserday, after entering doctor's room to start procedure, he decides to not perform procedure. He comes out to lobby and tells me that he did not want to have procedure because he did not know that it was permanent and "what if something happens to you?" My husband was WELL INFORMED informed by both doctor, internet, brochures, and discussion with me that this was a permanent sterilation and may or maynot be able to reverse. He never had the discussion with me about "what if something happens to me"...I have 1 child previous to our 6 years of marriage, and I did not want anymore children. My husband did not have any children and wanted a child. After 3 years of fertility treatments, we did intro-vitro and had our son. I am very hurt that he would wait until he is in the office to have procedure to decide not to go throught with it, and that he could not have communicated to me that he had thoughts of "what if". I feel that I have a wonderful life and marriage and I am happy with my established family, that "what if something should happen to him" and I should remarry or have another relationship-there is no desire for more children. However, I know see it as he has thought of " what if something happens to her, and I want to remarry I might want more children with that woman." Well if he is thinking of having more children then shouldn't he be interested in having them now with me than "what if"???