I had my cycle August 3-8 . I was ovulating the 15-18 . Me and my boyfriend had sex ALL of those days, im not sure if he pulled out of me . I started spotting August 19th, and from then to now im still bleeding (feels like a regular period) My question is , could i be pregnant or is there something seriously wrong ? Im bloated, having bad cramps , and my back hurts severely !. PLEASE HELP :(