Okay. I think I might be pregnant but I have had a "light" period and the color isn't the normal redish. It is more like a dark brown and I don't know what that means. Can anyone help?

Your periods can be vastly different from one month to the next. Could you give us more detail? Did you have unprotected sex? That is the key.
Did your period come on time?
Even if you are pregnant it would be hard to confirm this until you're due for your next period.