Today me and my girlfriend were having sex we stopped and took a break for about 10 to 15 mins. We did that for about 3 times. We did it one last time, Right when I was about to come and finish I took it out. I saw my girlfriends face and she just looked down on us and looked at me scared. I thought that she thought that I had finished inside of her and I told her that I didn't that i took it out, But she looked at me and said No your bleeding from your penis. I quickly got of and grabbed it. When I had let go of it my hand was covered in blood, and her shirt was too!! I went to clean up and left it like that. The thing about it was that i felt like I came (i do not know if i did finish or not) and finished, but no pain at all. She told me that blood kept coming out off her. Is it bad if my blood inside of her is bad in anyway? i'am worried i do not know what happened and i want to know what could it be. Can anyone help????