On November 26 I had light brown spotting that lasted for 3 days off and on. It never got dark or heavier, and only showed on the toilet paper. I've been pregnant twice so I thought implantation spotting which I had with both my kids. I was due for my monthly on December 2/3, so on the 4th and 5th I took pregnancy test which both came back negative. I've been having tingling sensations in my breast occasionally, and the other night was cramping on my lower left side like a period was going to start, but nothing. Has this happened to anyone, and did you turn out to actually be pregnant??? Thanks in advanced