Just wondering...if this be commonplace.?

Today, I wiped some commonplace blood, like I be starting my period, so I put a tampon surrounded by, thought nothing of the reality that I was 3 days precipitate for my period and continued on next to the day. After work when I come home, I got set to go to sleep, I took out my tampon and realize that there be hardly any blood on nearby, and most of it was brownish, similar to dried-blood. I wiped again and get no blood, which is abnormal, because usually when I'm on my term, I always start out bulky and I did not today, usually on my first day I soak a tampon.
So sorry almost the TMI, but I was really hoping if someone would know what could be cause this? Could it possibly be a pregnancy?Just wondering...if this be commonplace.?
Sometimes when your period is due some blood escapes up to that time the actually due date. It doesnt be a sign of anything. If you have have unprotected sex then Id help yourself to a pregnancy test newly to to get to the bottom of it. If the pregnancy theory test is negative after it was in recent times a case of some blood newly escaping before your truly due date!
maybe in recent times the start of ur period, if its not everyday by the time ur due then filch a test