I'm 16 and my period begun last Tuesday (16th) and it started like normal, my normal flow etc. It started to turn brown around day 4 like usual. My period normally lasts 8 days. Today, I noticed bright red blood on my tampons but no pain. Why am I suddenly having fresh blood? Could I have torn my hymen or damaged something with a tampon? I am a virgin. It's worrying me slightly as it's never happened before. My period should be over by Thursday at the latest, but it seems to almost have started all over again.