Hi, I've had my period for the last few days and was expecting it to end soon. Today I had really bad cramps which thankfully I don't usually have with my normal period but today they were bad. Then all of the sudden I felt a rush of blood and went to the batroom to check. I had put a tampom in two hours before so thought I would be fine hut when I went to the bathroom there was a large amount of blood. When I took my tampon out a huge sac feel out with it. It was big...the size of the end of a spoon if that makes sense. I've never had anything like this before and after looking on the internet some said it could be a vaginal lining and then some said it could be a misscarage. I'm worried and confused...please help.