i came on my period on the 1st of july was off by the 7th. On the 9th i had unprotected sex. Its been playing on my mind since and i cant stop worrying.On the saturday i had really bad headaches and have had them everyday since. paracetamol or anything will not stop them. Am i pregnant or am i just worrying too much. I probably wont get my period til the begining of next month but i dont want to wait that long. can anyone help please?