I had unprotected sex on nov. 21 and nov. 22 which is my fertile window. I took plan b both times but i did research and heard plan b can actually increase the chances of getting pregnant while ovulating. Its been 3 days ive had backaches, fatigue, headaches and dizziness and things that wouldnt gross me out our now DISGUSTING TO ME. Also not to mention i went to the mall and i can smell peoples perfumes and colognes a 100x times more than usual. I have also had a stuffed nose which i read can be a symptom. Ive read that people can see symptoms as early as 3 days but its more likely to see early symptoms in a week. I havent took a pregnancy test because my period is expected in the next two weeks.