i just had my period about oct 4 or in that area and beginning friday my stomach was cramping and felt like my period was going to start then saturday morning when i woke and went to pee there was a tiny little bit of blood and then i was just like ok i started and then when i mentioned to my boyfriend that i started he was like u were just on it and now i dont understand why there was blood and since then there has been no more..anyone know what it could be from?