tugging and tightness

ever since then the week before the last of March I've had this feeling on my left side. But I've also had what I thought was my period just a few days ago *it's already ended*. Should I still take a test even though I had a "period" . it was mostly all brown but more than spotting but less than a actual period. I would go through 1 pad the first and third day but 2 the second day.