So since September (when my period was extremely delayed) my periods have Been thick and dark brown with no cramps and extremely light when normally they are bright red heavy and painful. Is there something wrong? Could this be due to a bad diet? Could It be a sign of pregnancy? (I've not had sex only foreplay) I'm really worried because it says all sorry son the internet like I could have cervical cancer. I started my period in June 2014 and I have always been irregular. Please help