I'm 19 years old and have been on the pill for about 6 months. the last strip I had I missed the last pill of my pack but instead of starting my new pack a day earlier I took an 8 day break, I know stupid. I am now two weeks into my next pack and had unprotected sex about 5 days ago. What is the chances of me being pregnant? (Taking in mind that I NEVER took the last pill of my pack)