Not getting my period

Last month I had to take plan B as I had an accident during the sex on 13th day. I got my early period on 21 day last month that lasted for total of 10 days.

When I count to the first day of my last period, it’s been 32 days and I haven’t gotten my period yet.

I have started getting stressed and I had unprotected sex on day 28th considering my period are gonna start the same day or the next day.

Did anyone have experienced irregular periods for 2 months after taking a plan B or did I get pregnant because of unprotected sex on 28th day ?