PLAN B after plan b!!

So i havent had my peried and it was supposed to come 2 days ago but 2 days ago I had unprotected sex, took it the next day then I had sex the next day again should I take another plan b? please help this'll be my last and I've only took 1 this year so far. I know he didnt nut in me thought but just a precaution should I do it? l