I am a little concerned ... i am 20... I had what I thought was my period a week late. I have a 33 day cycle so it was well after 5 weeks since last period. When I started it was red and stringy which is unusual to me. My period was also very light and longer than usual. I took a preg test when I was 4 days late but not since. I didn t cramp like usual. The only thing was that my breasts were super sore and tight feeling and I was an emotional wreck. I m only concerned because this was a very unusual period this month.