What’s wrong

So I had my regular period end on the 18th of December I’m on the pill and I had unprotected sex the day after, a week later because of my work schedule I was not able to keep up with taking my pills at the right time and mostly took two the next day to make up for the lost time then I started spotting on the 30th of December and the next day had a full blown period, which I’m still having and it’s the 6th yet I haven’t stopped and that’s longer than I have ever had my period! Is this because I didn’t take my pills on time or what I’m scared because this had never happened to me before.