When Will I Get My Periods?

Hi doc, i had an unprotected sex two days before the due date of my periods on 24th oct and took an ipill within 2hrs. i got my periods on 3rd nov which lasted for 4 days(I usually get very heavy flow,but this time it was moderate). But now i have not got my period since then. I have around 32-34 days cycle. My next period was due on 4th dec. I have not taken any pregnancy test yet. Can you suggest me when will i get my periods?