Hi there. Well, I think you are most likely covered but if you are super afraid, go ahead and get it. good luck
I'd take the 30 day guideline seriously, so if you've been on the trivora for less than 30 days and plan B means the morning after pill(s) approach I think that's the route to go (after consulting a pharmacist and/or doctor - perhaps your area has a healthline help number to confirm such information). I think you must do this within 120 hours (but believe sooner may be better).