Need advice!!!!

Ok ladies I have PCOS and September was the forth month we used clomid and we also started preseed. I have been regular while in clomid but I was suppose to start AF on sep 28th. Still no AF. I have taken a hpt and it came back negative. I have been very nauseated and had sore boobs. Has anyone else experiences this? Where you pregnant? What is your advice to me? Anyone is welcome to give me advice or your thoughts.