I Had Sex On The 7th Without Protection. I Ate

I had sex on the 7th without protection. I ate postinor 2 within the first hour after sex. Then ate the second one after 12 hours. My ovulation day is on the 12th. Since the sperms can live up to 5 days, Is there any chance of me getting pregnant? how long does the pill's effectiveness stays in the body? Am i supposed to take more postinor 2 pills? Does the pill kills sperm?