Ectopic pregnancy or plan b effects ?

So I took plan b when I had unprotected sex, like around May 19th...1 or 2 weeks after I had my period...then I had my period again after another week or so which lasted 3 days..and a few days after that I was spotting for just a few hours....Yesterday I felt crossed eyed,dizzy,I vomitted and had no appetite just for that day...and had a huge headache right in the middle of my forehead...can these be signs of an ectopic pregnancy or just effects from the plan b that I took ?