I made a mistake and did something with a man who had a vesectomy an sperm count was 0 three days before my period had my period like normal then got back with the man I have been with for 6 years and 10 days after my period made love with him I missed my next period took a pregnancy test when I was 4 days late took another test 3 days later and it was positive what are the chances of it being the first guy who had a vesectomy