There are a multitude of reasons for bleeding between periods, but any bleeding should be investigated by a doctor because some of the causes can be serious. Better to get it checked and find out it is caused by something insignificant than to risk missing a cancerous condition.
If you are virgin chances are you have not had sex, and so cannot become pregnant.
Go to: http://blogs.webmd.com/womens-health/2007/06/missed-your-period-but-youre-not.html
she may had a period, she was a virgin because she had not had intercourse
that a virgin couldn't get pregnant, because she was a virgin
Yes, all girls have periods. If you skip your period you are probably pregnant. Periods tell you that you are not pregnant.
Yes, it is completely normal to get brown discharge for four days before your period, this is spotting which is just light bleeding as your period starts. A virgin is absolutely no different to a non-virgin.
you might be pregnant
If you were a virgin, it is just a normal occurance after the first time, and is nothing to worry about.
You can still get pregnant from pre-ejaculation. And on your period or not, you can still get pregnant.
You cannot be a pregnant virgin
Stress can sometimes delay a period along with many other things. If the woman is a virgin, she does not have to worry about being pregnant.
If you are a virgin, and have not come into contact with any semen, it is NOT possible for you to be pregnant. You likely just have an irregular period which is very common for women your age.