The hymen has absolutely nothing to do with menstruation.
The hymen does not break - it can wear away, stretch, or tear as a result of penetration - typically the hymen will only tear if there is rough or forced penetration. Menstruation is controlled by the reproductive organs, you start to menstruate once you reach a point where the body is mature enough to start ovulating (which occurs two weeks before menstruation).
The hymen is tissue that surrounds the opening to the vagina, nothing comes out of the hymen - it comes out of the vagia, past the hymen. What comes out of your vagina can be menstrual flow, discharge, and of course a baby.
You may have broken your hymen. But if this happens repeatedly, you should look up a doctor.
If she has an intact hymen it is broken. And she loses her virginity other than that there is no change in the girl other then possibly a change in attitudes and preconceptions.
You don't eat nothing to get your period. Your period will come at the right time
You don't have a cherry and nothing pops, this is a childish term for the hymen tearing - the hymen is tissue that surrounds the vaginal opening, it can tear as a result of vaginal penetration but not always as it doesn't cover much of the vaginal opening and it is flexible so can stretch to allow penetration. The hymen has absolutely no relation to menstruation what-so-ever, menstruation is controlled by your reproductive cycle.
Your hymen should have an opening in it, allowing the menses to flow out of the vagina. If it is imperforated, it will not have an opening and must be surgically opened to allow fluids to escape.
After using emergency contraception, your period may come a week earlier, a week later, or right on time.
the pregnancy could be a false positive
Snot out of your nose right ? Not nesessarily - it would though if you also have a cold.
It might not be jail broken or might not be done right
Yes if they have good reason to believe that you have broken the law but you have the right to remain silent
There is no " medication " that can start or stop your period. It will come at the right time and you just have to be patient. Some symptoms that means your period is coming include discharge, cramping, and headaches. Be sure to have pads/ tampons around when these symptoms occur. Hope this helps!