NO (or shall I say NEVER). If a vampire female could ever be impregnated by a vampire male, then Carlisle and Esme, Rosalie and Emmett, Alice and Jasper would have a lot of children given that they have lived for a century. We must know that in that world created by Stephenie Meyer, a vampire's body would never change. Therefore, pregnancy would be impossible. But a human female (when Bella was still human) could be impregnated by a vampire male (Edward), that is why we have Renesmee Carlie Cullen. And to add up, we also have Nahuel, who is a half-immortal, half-mortal. He killed her mother and bit her aunt (he is venomous because he is male). It was learned later on that his father was Joham, whom the Volturi will lokk for to kill.