My period was due 07/06/16, a week later on 07/13/16, I took a hpt that showed a faint positive, but bled the following day (07/14/16). I had a blood test done where it read negative. August, my period came 08/14 - 08/18, but when September came, the same events followed. My period was supposed to come 09/14, but was a week late. So on the 21st, I took another hpt which also showed a faint positive and then I bled the following day on 09/22. I'm unsure of what's happening but I don't feel any cramps and my blood is extremely dark and clotty.. Could these be early miscarriages?