My period was due on the 12th and I have been having a lot of symptoms of being pregnant. The biggest, and most obvious, I missed my period. I also have mild cramping, nausea, heartburn, sore breasts, food cravings, fatigue and I'm very emotional. I have all of these signs, but I've taken several tests and they're all negative. I've have miscarriages before and I have been taking pre-natal vitamins regularly. Along with a normal daily vitamin, a B6 vitamin and applying progesterone cream daily. What do you guys think? How long did you have to wait for a positive result?