I'm just going to get straight to the point because I'm losing my mind. I've missed two periods meaning I haven't had a period in about ten weeks. At first I thought it was due to stress, I recently stopped talking to my older sister due to a family dispute and my fiancé's baby brother died. But then a few days after my due period, I started spotting brown watery discharge that only really appeared when I wiped and only left spots on a towel...this happened for about four days then stopped. A few days later the exact same thing happened again, this time with really bad cramps, specifically on one side. My periods are really heavy so I thought implantation ..then because it went on for longer, I though ovulation. Well, during the break days, we had unprotected sex and now I've missed another one. During the first four days, I took a test which was negative so I waited til the end of the week and took another one which was negative. Now I have a feeling of nausea that comes and goes and a horrible taste, sometimes sick feeling and sometimes metallic. I also have terrible headaches that come and go, shooting pains all over my lower abdomen, increased wind and indigestion and terrible back pain all over. Also my breasts have gone up a cup size and the veins are starting to show more. My periods are usually regular 29/30 days so if it was ovulation bleeding, I still haven't had my period. I took another test today and it said invalid. Could it be something else other than pregnancy or do I have some good news to tell my fiancé through a rough time?