What's With This Vaginal Bleeding ? ?!

Heyy.
My bf and I were having sex today, but we decided to try without a condom ( don't think this is really relavent to the question ). I wasn't really that wet at all but we persevered and got it in after some pressure down there. We just did it fer a little bit until we decided to try doggie style.
Okay so we tried this but he was gonna stick it in and then later put a condom on when he was closer to finishing. He pulled out and was gettng ready to put the condom on when he noticed a smear of blood on his hand. He told me he thinks I was bleeding. I checked and when I glanced at my fingers, they were very bloody. Of course I got really upset.

I would have expected to see lots of blood on his penis when he pulled out, but there was none except that bit on his hand. He told me that it had to have been from when we forced it in there that first time we tried. But I am still scared because I am bleeding somewhere like that at a time that I shouldn't be, correct? I read up on vaginal bleeding and it gave me a list of diseases and that freaked me out a little bit.

So would that bleedng just be from the force when we tried when it wasn't wet enough pr what? Please tell me what you think and i apologize fer this long explanation. Feel free to ask questions.

Thanks so much!!