How exactly do ageing and pregnancy work in these movies? Judging by Selene and the other vampire characters,once bitten a vampire does not age but in the prequel Sonja is first seen as a child about Lucien's age. Did Victor just wait until she grew up before turning her? Can all female vampires get pregnant or was Sonja just special somehow? And was Selene ever actually phycially pregnant with Eve/Subject 2 or was Eve a testube baby?