when should I get tested?

Tabby
I haven't had sex in over 6 months, the guy was a virgin before me and we always used condoms. I don't believe it would have been possible for him to have been carrying anything? My only other sexual interaction is with a past boyfriend, maybe two years ago, but the only thing we did is I received oral and he fingered me. Is there any way I could be carrying anything? I don't really have the opportunity to be tested.