My husband and I have been trying to conceive for 8 months now. I have become very in tune to my body since then and the symptoms I am having are definately not normal for me. My cycles are always 29 days long. I get the LH surge (using digital OPK's) on day 15 of my cycle and I always start my period on day 29 which lasts 5 days long. This month I started my period on the 21st which is when it was expected, but the bleeding only lasted 3 days. The bleeding was heavy enough the first two days to rule out implantation bleeding, but lighter than normal. I've also been experiencing mild/annoying cramping on both sides of my lower abdomen since day one and now i'm on day eight and I usually don't have cramps after the 1st day of my period. On the 3rd and last day of my period/light spotting I had a near fainting spell at work while I was sitting at my desk. I became extremely pale in the face and broke out into a cold sweat. The room seemed to be spinning and I could barely walk which lasted for about an hour. I also vomitted during that time as well. I normally wouldn't be concerned, but the near fainting, vomitting and cramps has got me wondering if something could be wrong. I took a pregnancy test on day 3, but it came back negative. Should I be concerned or could it just be stress?