I got my period and its lasting around 7 days now.. my period usually last around 4-5 days and I'm done but now its been 7 days already and every time I go to the bathroom it seems like it won't go away in a while because its so red and such I don't know.. and yeah I was in birth control I took the 3 months shots or something like that. It finishes it on October 23rd and since then I stopped using birth control or something. I'm sexually active, I live with my boyfriend and I'm 18. Is there something wrong? Should I worry?

If what you are talking about is depo than it is somewhat normal. Depo provides you a shot 4 times a year to use instead of the pill. One of the side effects is persistent and irregular bleeding. I would suggest you spend a few minutes talking to who ever gave it to you, and they will tell you if it needs further attention.