I had unprotected sex the day after valentines day. I took the Plan B one step pill the day (12hrs) after. It is now a little over one week since the unprotected sex occured and I haven't gotten my period. I did however have spotting occur last Wednesday and Thursday. I am also taking aspirin and vitamin C to prevent pregnancy. I normally receive my period any time between the 22 and the 5 of the next month. I am worried that I may be pregnant. That is all I can think about. I have already decided to get the vacuum abortion if I am pregnant.