I’m really worried as I’m a week late. Usually like clockwork. DH had the chop 4 years ago. Tests came back clear. Can vasectomies fail after that amount of time? I’m 42, so chances are I could just be starting to hit early menopause. I suppose the only way to find out is to do a test. On holiday at the moment so will do one when I get back if there’s still no sign.