Nishit123 - there is no way a man can know whether you've had sex before. Sometimes you can tell that someone HASN'T had sex, because they still have the little stretch of skin in the vagina called the hymen, but this skin can be broken or stretched by perfectly natural causes which do not have to be sexual. There is a belief that virgins always bleed when they first have sex, but this is not true. Some people do and some people don't. I don't know what 'mucus plug' edjones is referring to, the only time a woman has a mucus plug is when she is pregnant, so I think he's got his facts mixed up a bit there.
