I accidentlly took two of my triphasil (ethinyl estradiol and levonorgestrel) pills on the same day. Problem?

No. The only problem with taking two pills in one day is the small chance of nausea. Keep taking the pill pack as you normally would, and you'll finish one day early before your scheduled 7 day menstrual period -- in this case, however, it'll be 8 days and then you'll start another pill pack.