As of today, I was a week late with my period, which never happens. I was really beginning to think i'm pregnant. I was having a few symptoms too. Well, I ended up starting what I thought was my period today. It turned out to be just light pink and brown spotting though, nothing else. I'm wondering what it could be? Is it possible that even though I had sex on sept 2nd, it could still be implantation bleeding, or is it to late for that? Any ideas? Thanks.