I am 28 and I have always had an irregular cycle. I was put on birth control and I was OK for a while,then I started spotting for 7 weeks straight so I stopped taking it and was fine but Its been 2 months and I haven't got a period or any spotting. Then now I am spotting dark red almost black. I have been having unprotected sex with my boyfriend through all of this also if that makes a difference.

I would go see a doctor it might be nothing though