Pre Teen Virgins Help On Understanding Pre Ejaculation?

Help on understanding Pre ejaculation? - pre teen virgins

Ok, so a few days ago I had sex and I lost my virginity, and so were others, and my first BF does not use protection and well-being can think of nothing but him, but my classmate, I was worried when he said it was a good thing, because before ejaculation. But I think it was before cummed. And she said, especially since she was a virgin, the situation is, is that true?
Sometimes you can not feel that leaving is this true?
So is there a possibility of pregnancy?
So I do not bleed after it just because it is not enough or what?

PS I'm not a teenager 20th