I had sex with my boyfriend the night before I was projected to ovulate, I had recently quit my birth control. We used a condom and pulled out. A week later I got my tonsils out, and was on oxycodone for a week and then a week later was Christmas. I was 3 days late and I had an OBGYN appointment to talk about birth control options and she said I was most likely not pregnant. The next day (4 days late) I took a pregnancy test and it was negative. Then I went out of town for 3 days. I still haven't gotten my period, and it is 8 days late. Should I be worried?