Got off the pill without finishing the pack

hey I'm knew to this site. 

So I just started a new pack and well and I completely forgot to take it and on the 23rd and on Christmas we had unprotected sex and I havent taken Anymore pills Since that relationship is now over. I am bleeding start with spotting the last two days and now it's getting heavy. I don't have to worry about being pregnant right?? Also I was super horrible in remembering to take the pill. My ex and I still would have unprotected sex...