Sex is sex, it does not matter who gets an orgasm and who does not. There are different types of sex: masturbation, fingering, oral sex, anal sex and intercourse. Different people consider different things to be sex. For example, some people will not consider fingering or oral sex as sex.
Intercourse (a penis inside a vagina) is however always considered as sex. It does not matter how long it lasts and if he ejaculates or not. After it you are no longer a virgin.
PLEASE be careful and protect yourself from pregnancy, STDs and infections.