Opinion On Pregnancy Possibility

Today I am in my fertile window, tomorrow I ovulate, lastnight I had sex and my man came inside me and I am not on BC— I know... this doesn’t look good. My question is this: I took Plan B about 30 mins after sex, so almost immediately. Because I am not ovulating and only in my fertile window, what is the likely hook Plan B will work? Is it too close to call? I know the window for emergency contraception to work is VERY narrow. Im curious if anyone has experienced this close of a call before. I feel like the odds are not in our favor however, because I am supposed to ovulate tomorrow I’m nervous.