Popped cherry or period.?

It could be that your hymen did tear some. The main clue I get from this is that it stung when you peed. Urine has ammonia in it, which stings when it comes into contact with an open wound. If your hymen did tear, that doesn't necessarily mean that it tore completely, and it certainly doesn't mean you aren't a virgin anymore. If the bleeding doesn't stop after a day or two, and it isn't time for your period, go see your doctor. If it is time for your period and you don't feel any discomfort aside from anything you usually experience from it being that time of the month, I wouldn't worry about it.