my bf rubbed his penis ard ma vagina 4 days after my period bcos am scared to get pregnant .is it necessary to take postinor2

I use a period tracker and it is always fairly accurate. My cycle varies from 25-28 days and the latest I've gone is 30 days. Last month, I had unprotected sex at the start of every intercourse but eventually used a condom, and my period was late for 4 days. It came at around day 32. Since the last period, I've had sex for 3 times and all 3 times a condom was used the whole time. I'm 2 days due and it's at day 31 now. I'm not particularly stressed (I've had a lot worse days but my period was still on time) I'm not on any kind of medication, I've not started exercising excessively. I have break outs and tender breasts. Could I be pregnant?

so pls after taking de pill wat r my chances of nt becoming pregnant