... always take my pills as scheduled. The last pill in my pack (brown reminder pill: 75 mg iron) was taken at my usual time of 9 PM on Tuesday. On Wednesday, I had unprotected sex around 7 PM. I have been unable to get my prescription filled until today (Friday), which means I have missed the first two active pills in my new pack. Do I take two pills today, two tomorrow, then continue one pill a day until I finish the pack? What are my chances of pregnancy?