Plan B during ovulation

My app is sometimes a little early or late. Today it says it was my ovulation day (33% chance of pregnancy) When I ovulate, I get the egg-white discharge. I’m 99% sure this morning I had watery discharge, and furthermore saw no egg-white discharge in the day. But I know I should be ovulating either today or tomorrow. I had protected sex with my boyfriend this afternoon but the condom broke. We had sex earlier this morning too (protected), so the second time around there wasn’t much semen like our earlier session (that’s just how his body is) But we still went to Walgreens immediately after and took it within 20-30 minutes after the incident. I’ve been reading lots of articles and some have said they took it within 15 minutes and still got pregnant! I’m scared i may have been ovulating today and plan B is supposed to prevent that. I’m freaking out 😓😓😓😓