Stressing!!!! HELP!

So I’m stressing pretty bad right now. Me and my bf had a accident on the early mornings of June 17th and I took a plan b around 9:30 that same morning. It is now the 25 and I have not started bleeding yet from the pill. I am scheduled to start my period on the 1st of July. So far I have had no symptoms for a period/ pregnancy/ plan b bleeding. I am legit scared because I CANNOT BE PREGNANT 💔 especially after that what has gone down with our government. Should this be something to stress over? Like I don’t know what to do