help me , paranoid

Ok I was on bc the patch for the summer but I took it off bc me and my family went on a beach trip and I didn’t know where to put it ... so before that I had a period August 5th then another one a couple days after I took my patch off which was august 22nd ... I also had sex the 22nd .

I took a test September 10th and it was negative.

I also had sex afterwards last Friday the 17th but I took a plan B the day after . I still have no period though