Well, today is March 25th; still no AF, and she was supposed to show up on the 22nd (: I'm 99.9% positive that I had IB on the 18th or 19th (can't remember which day). I believe that I ovulated on the 9th or 10th if this month, and research suggests that IB can happen anywhere between 9-16 days after ovulation. I took a test on the 21rst and 23rd; both blue-dye tests showed up negative. I've heard that they are best known for "false" negatives and positives. I just have this feeling in my guy that this month is my month! I'm thinking that once my AF has been completely missed (not just a few days into it) I'll test again with a red-dye test! Hopefully I'll get a BFP with one of them, or maybe I don't have enough pregnancy hormone inside of me (if I am pregnant)? I'm crossing my fingers! Has anyone else had this problem before and then finally got their BFP?