I took 4 days of week 1 of the Sprintec and stopped the pill due to the nausea side effect, I had withdrawl bleeding for two days at the beginning of what would have been week 2, I had regular cramps and according to my last cycle my next period would have started on Day 2 of the placbo... It's almost the end of what would have been my placebo and no cycle... I had unprotected sex two days of what would have been week 3? What are my chances of pregnancy?