Very worried

So November 28th I was supposed to take my pill but I couldn’t pick my pills up ): so I doubled up the 29th and I am so strict with my pills but I really don’t know what happened I was working so much and I kept missing and doubling up for the next 3 days . On Saturday the 3rd me and my bf had sex , he didn’t finish in me . but I didnt remember about my pills until the middle of it . I immediately stopped . The next morning I got a plan b. I’ve been taking my pills again strictly but I’m so scared bc it’s been a week from today and I’m cramping horribly . I hope the plan b worked . Please don’t bash me because life just happens , so you guys think the chances are really big of pregnancy ?