The hollobump wasn't real, even though it was Roxannes real bump. Half(? a 13rd?) the crew including Naomi were confined to quarters. Everyone thought that they were their aliases and fucked and killed as if their aliases were real. Their FRENCH aliases. Janeway ran a brothel for frakks sake! On the other holodeck? Neelix was a Klingon General who just won a war. From what we know about Klingon excess, at the victory party he would have fucked everyone with a pulse. I suppose all the men he had sex with wouldn't have resulted in many pregnancies, but there were girls everywhere too.