My period comes very on-time before I lost my virginity. It usually come on the 17th. Now is March 23, my period was late for 7 days. And I'm so worry bout it. I know for sure I'm not pregnant cause I lost my virginity at the March 19. That's was the time I'm gonna have my period. But still, I'm very worry bout it. Pleas give some advice and tell me what happen.