I lied to my wife about getting a vasectomy.
Why would you lie about such a serious surgery?
I didn't want her to know I wasn't going to be able to have kids.
Lying to your partner is always a bad thing to do, especially when it's something as important as a vasectomy. Instead of lying, you should talk openly and honestly with your wife so you can work through the problem together.
I don't want to look stupid by trying to get another woman pregnant.
Even more of a reason to come forward with the truth. It is good to talk through problems that arise in your relationship.