you wouldnt have any right to kill or beat the broad if you fucking her with out a condom.
dont be dumb. dont trust no one. make life easy....
for the first date take the broad/nigga to the clinic and get tested 
. after 2 weeks get the results...if its negative.then continue to date.and still use a condom..cuz the bitch could be fuckin otha niggas/broads...but
if she/he refuses to go get tested with you...then that shows signs of ho-like tendencies and she/he kinda afraid to find out if she/he got anything so dont fuck with her/him.
and by the way. if you fucked her with out a condom aint no tellin who else u fucked without a condom so why be mad at her?? shiiit...you might be the one who gave it to her and just dont know it.