Can i get bv if my parnter had unprotected sex hourse before having unprotected sex with me ?

how do you know the other person is disease free? IF they had a test when was that test taken? Having unprotected sex with multiple partners increases the risk of STI's/STD's TREMENDOUSLY - for all concerned. Why would your partner put everyone at risk?

i dont know , but shes got checked a wile ago nd he is her only new partner .. could i get bv if shes just generally dirty down there

IF all she is is unclean - then no! BUT there are crabs, genital warts, yeast infections, CLAP, etc etc etc. You wont know IF he has given you anything till you know - take a look out of symptoms - like rashes, pain, discharge etc. and get into a clinic ASAP - as soon as the symptoms show, most can be cured with antibiotics! To protect yourself ALWAYS use a condom - even though that doesn't help with crabs or genital warts! Did you know he was having unprotected sex with someone else right before you, or did you find out after? As in this day and age of STD's/STI's taking off at alarming rates, pregnancy or crabs could be the leasst of your worries - like Herpes - is a life long infection that there is NO cure for!