I don't have herpes, but my boyfriend does. if i take herpes meds and he's taking meds and condom is used, what are my chances of getting it?

Very low risk: The important things to prevent transmission of genital herpes due to HSV2 are 1) no sex during outbreaks, 2) the infected person to take an anti-herpes drug like valacyclovir, and 3) condoms for vaginal and anal sex. With all three, you are very unlikely to be infected. It's not known if you taking anti-herpes drug would further reduce risk; there's been no research on this. Probably not needed.