The Sunny Side of the Snip
Regardless of their universal reluctance, many men become big proponents of vasectomy once they are through it. One strong, silent type who never talks about intimate details admits, "It's not uncommon for me to go on vasectomy crusades now."
One upside is that you are required to go on an ejaculation mission after the snip. Considering that you have endangered your manhood for the sake of the relationship, and that after the first week, you are under doctor's orders to "release the hostages" often, you likely will get a good spell of action. Having sex 15 times in two weeks is a tall order for anyone, let alone a married couple with kids, so don't expect quite that bonanza. Be creative with your leverage though, like the man who struck this bargain with his wife: "We made a deal. I do half and she does half." Another father of two said, "I was too embarrassed to wait for us to have sex that many times before I brought in my sample, plus I was eager to fly without a ticket, so I took matters into my own hands ... a lot."
When you test clean, of course, you will have a freedom you've not known since before shaving. It's important to have a serious team huddle on any permanent solution because the guilt potential is not the kind of burden one partner should have to carry. You can try to get vasectomies reversed and tubes untied but there's no guarantee the ammo and the egg factories can be reactivated.