Tmi but help

Hi I'm 15! I'm 12 weeks an five days pregnant. I just got home from the hosptail because of this. They said the babies were fine an that its normal. The second picture is my first whip my second one is when I hold it there so a minute an a half. I'm very worried . an they said I'm himerginning an have a paravira placenta I just don't understand why I'm bleeeding.