When i lost my virginity over a year ago my hymen didn't break. today at the gym i was on the bike i saw blood. it was painful too. any answers?

Odd question: You say you lost your virginity, which I will assume you mean had intercourse. If you had no bleeding at the time, you likely lost your hymen in childhood or never had a significant one.An erect penis will stretch/tear a hymen if it is there. If you have blood now, you likely injured the tissue nearby. Get a mirror and look for a cut. Its not easy to see but worth a look.