Hi , my af usually comes around ever 29 days , i started the pill on the 22nd of october only using it for 33 days, had regauar period that month , anyway i finished taking it on a tuesday and had unprotected sex on the friday , that being the 27th nov , should of had my af 16 days ago now but only had brownish discharge for 2 days and nothing since !!! took a test last monday but neg ?? can anyone help please ??