If you got pregnant and one of your partners had a vasectomy and got checked by a doc with a zero sperm count any possible way he could be the father?

Wishful thinking: If the vasectomy partner has a documented lab report showing zero sperm, it is unlikely but not completely impossible. There are rare known instances of the vas deferens( sperm pathway that was cut or clipped) blockage to put itself together again. However, if you have had multiple partners, and did not use contraception, you are more likely pregnant by a "connected pathway guy."