Question!

Hi there! So I have been kinda freaking out... my boyfriend and I had unprotected sex on June 2nd. He didn’t finish inside and so we waited a couple hours and went again. Same thing didn’t finish again. But because I was paranoid by it, I took a plan b within 12 hours of that day. A few days later I had bleeding for 6 days which I figured was the uterine lining shedding which was around June 9th when that happened and lasted through the 15th. Then in July I got another period on the 1st and that lasted for 6 days like a normal period would. Then August I got another bleeding on the 2 or 3rd day and it lasted again 5 days. Now I am in September and haven’t received the my next period. I am panicking a bit.. and wanted to know if I could be pregnant or am just freaking myself out? Any advice would be great honestly.