My Period Started On The 15th Oct And Ended Around

my period started on the 15th oct and ended around 19th,I had unprotected sex 3 times in 3 days (from 22nd to 24th of oct )with my boyfriend, he did not penetrate on all of the occasion but he ejaculated on me close to my virgina. I later took postinor 2 drugs around 9.28pm on 25th of oct, is it possible I am pregnant? because I realy feel funny inside.