If you feel you must ask that question here, then you probably aren't ready to handle a physical relationship, let alone another human being.
It's true that a lot of people have sexual intimacy, and don't get pregnant. But try to imagine what your life would be like if you DID get pregnant.
lara why would u want to, respect yourself have sex with someone that loves u , not someone that doesnt , its just a crush , not a relationship , if its to loose your viginity , its very sad