Helpp, how do i tell my love ones i might have hiv?

Okay, a couple months ago, me and the guy I was talking to had sex with a codmon and it busted, don't know for how long, but his penis was out the condom, and precum had to get it, a week later I had a sore throat with green flem.....now two months later, I'm having bad headaces and I'm not sure if is the stress of nursing school or him, this was the first and only time I eevr had sex, and I heard he was nasty.?...so pls help I'm suicidal