cndeh-
I just noticed that your calculations for determining days is incorrect. Week 1, day 1 is really Day 1, but with your example in the rules it would translate to day 8. So i'm thinking it should be more like this:
example: Week 3, Day 4 = 2 full weeks (14 days) + 4 days = 18 days.
Pretty much you have to subtract one from whatever week it is and multiply that answer by 7. Then you take that and add the extra days to it.
I just wanted to let you know because maybe you've finished your wishes a lot faster than you think.