Hun, that all depends on you're concept of virginity.
The concept of virginity differs from person to person. Most people consider a virgin to be anyone who has not had sex. Some people only count vaginal sex, others include oral and anal also.
Some people extend this to include other non-penetrative forms of sexual behaviour, and others consider ANY sexual behaviour including masturbation to be a loss of virginity.
The medically and biologically recognised definition of a virgin is someone who has not had penetrative sex, therefore, if your boyfriend did not penetrate you, you are still biologically a virgin.
The presence or absence of a hymen is not a good indicator of virginity, as many women break theirs during everyday activities such as sports or tampon usage. Some women are born without one, and all women break theirs the first time they have sex. Many women who are virgins lack a hymen, and other women who do have a hymen may not be virgins.