am a virgin and doctor says am not

sometimes girls brake it with a tampon

Depending on how active you are active your physically, it could have been broken another way. If you play sports or if you ride horses it could have been broken that way. It could have been broken by a tampon as well. your hymen is a very thin piece of skin. Weather you have had sex determines weather you are a virgin or not. I hope that this was your gynecologist giving you this information and not your dental hygienist.

Hope that helps
Holmestrix