If the hymn breaks in the vagina is she still a virgin?

Yes breaking the hymn has nothing to do with breaking the virginity

If your hymen breaks during intercourse, a female is no longer a virgin. but your hymen can break in many ways, even doing daily activities like riding a bike, so in that case a female is still a virgin. the only way to lose your "virginity" is to engage in sexual intercourse. 
hope that helps :)