***This is the third forum site I have posted on, please I just want some opinions***

Quick background: I'm on the pill, my bf and I always use condoms--no exceptions, he always checks them when we're done, and I also have PCOS. My Polycystic Ovarian Syndrome is known for making periods irregular, the pill usually can regulate that, and it's also the most common form of infertility in women.

My stress has been on/off for about two months, I haven't really changed my eating habits (that I can remember), and I have an aerobics class twice a week.

I've been on the pill since June '06.
Last month I had my normal brown spotting, *but I also had about a teaspoon of actual blood which isn't normal for me.* This was exactly two weeks before my period. My period came on time, but a little lighter than usual.

My period (started yesterday) came on time as well, but also seems to be lighter. (Same lightness as last month) And I also had normal spotting before-hand. My cramps have also been on and off, but that's normal too.

I know some girls have been known to "still get their periods" but actually are pregnant.

I've also heard that if you have spotting it's a sign that you're not pregnant, because if you ARE pregnant and spotting it's a sign of a miscarriage.

Should I even be worried?