I'm just stupid

Made a very dumb decision tonight. My boyfriend and I were about to have sex and I wanted to know what it felt like without a condom so I talked him into doing it without protection. I'm not on my fertile window, my period should be coming in 6 days, he didn't cum in me and he peed after the last time he jacked off, and it's late at night right now so I planned on getting plan B right away in the morning. Could someone ease my mind and tell me I'll be okay? I know not to do this again