I have been on my period for 23 days now, it has been very light (more than spotting, but less than enough blood to fill a light tampon) I was worried that it was implantation bleeding so I took a test and it came back negative. I'm 19 years old and recently got a copper iud, not sure if that makes a difference, I was just wondering if I should worry about this yet? I don't have good health insurance so I don't want to make an appointment unless it is totally necessary