Losing your virginity?

Jessica
So I'm a virgin, or I was until a few days ago(..?) But I'm kind of a little confused. I'm a tinier girl, about 5'7" and 115 lbs, so I'd assume I'm on the tighter side? And I've heard that having sex can hurt the first time if you're smaller. So I expected that. But he literally couldn't even get halfway inside me before I told him to stop. It hurt so bad I couldn't take it. And it's not like he's huge either. Is there anything that I could do about that? Like, I'm just generally confused. 
Also, I noticed the next night that there was blood coming out of my vagina. It was like a bright red color, so it wasn't my period or anything. Plus, I'm no where near that time of the month. And I know there's a possibility of my hymen breaking, but I thought that had happened a couple months ago when he had fingered me a little to hard.. Is there any other explanation as to what that could be..? I'm just a little concerned.

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