That would put you in approximately the middle of your cycle, right in the PMS time period - that is the logical time for hormone fluctuations.
If you ever feel like you are pregnant, take a pregnancy test. All the wonder and worry is easily solved by a quick pee on a stick. As it is, it sounds as if you've been wondering since your last period whether pregnancy is a possibility for you.
Bleeding is seldom ever a sign of pregnancy - especially if you are bleeding on schedule with your normal period (ie, not late, more than just spotting, etc).