I am 21, I’ve never had sexual relationships and I’m worried I’m having spotting (5-7 days) with brown blood and clots between periods. I don't think it’s a true period as its only spotting (doesn't even fill a pad) even though it lasts about as long as my real period. My regular periods are moderately abundant with bright red blood , clots and strong claps (enough to interfere for a few hours with my life, not enough to be hospitalized). My last period was about a month ago or less (don't have the exact date). This old blood spotting happened before my last period as well. The only information I can find on the net with “old blood” seems to relate to pregnancy. I'm not on the pill and not taking any vitamins or medication. I’m worried this be dangerous… I would be thankful for any information.