Late taking the pill

Isabella
I missed my pill one night, so I took 2 the next night at my time. I had sex about 6 days later but I can't remember if we used a condom or not. My next period came but it was pretty light and lasted 3-4 days. Now my next period is in 9 days and I'm already cramping and getting lower back aches. I'm stressing and freaking out. Am I okay??