I took Plan B after havin unprotected sex and for 8 weeks i've been having symptoms of pregnancy with little to no nausea but my period did not come for those two months. I took a First Response pregnacy test and both sticks indicated I was pregnant, but a couple days ago I started what I believe may be my period, started out light, now it's heavy with extreme lower abdominal pain. Im fearful that it may be an Eptopic Pregnancy.