My lover touched his semen in my vagina ,my hymen didn't broke ,never had a penetration even once ,is pregnancy possible?

May be not, but...: Although the described scenario posed low likelihood to get pregnant, the game you played is a typical example for accidental pregnancy . But once it's done, move on, and get a home pregnancy test soon missing the expected period and repeat it in 5-7 days as needed, besides watching some pregnancy-related symptoms. If in doubt, ask Doc timely. But in the future, practice safe sex & be responsible.