I had a normal period, then the next month I had what I thought was an early, lite period. It was brownish/pinkish discharge but I threw on a tampon and thought nothing of it. A few weeks later, I thought back and realized that it was not a normal period then came across the term implantation bleeding...bingo! It was spot on! I took a test and it was negative, Ehh must be a period after all. Next month, didn't get my period. Hmmm. Thats odd. Took a test, Negative. Next week, still no AF, but still negative. FINALLY I got a BFP at 9 1/2 weeks! I didnt have any symptoms other then really bratty attitude, like REALLY bad. After I got my BFP, the headache's came full swing and just felt like I had the flu. Unfortunately I miscarried at 10 1/2 weeks, but thats just me. Hope my story can give you some hope!