You very well could go two more days to nine more months without AF. Don't think about when she's due, just keep telling yourself she's not coming. =). However, your LP could be 12-16 days. Who knows. You may not actually be due for her until Tuesday or Wednesday.
ETA: I didn't see you had full chart last month. Okay, so your LP was 12 days last month. LP's can vary by a few days. You could possibly have an LP of 14 or 16 days this month. If you implanted later, you could get a BFP on the day AF is due or even later sometimes. =). It comes up in the blood quicker, so it would still prevent AF.