Am I wrong about my dates?

Ok, so af was the 10th-12th of May and I ovulated on the 22nd.  I went to fertility friend and it says that I should get af this month on the 7th, which is tomorrow.  I am a bit confused, seeing that when I was on the pill I would get af at the same exact time every month, so if it was on the 10th of may then it should be the 10th of june right, but I know that since I am off bc it should all be different, right?  

[ctsmom]

when I was on the pill it was a 28 day pill pack, and after I went off my cycles were anywhere from 26-32 days long, so for me it really varied

[shar7222]

I went off the pill and got pregnant two months later.  I wasn't charting or keeping track or anything.  I did end up having a mc.  After that, my cycle was long for a couple of months and now I'm down to a 29 or 30 day cycle.  I think it takes your body a couple of months off the pill to readjust.  Charting my bbt and using OPK's really has worked well for me and fertilityfriend is a great site.

[jess2precious]

I just don't know when to expect af, seeing that I should get it tomorrow (fertility friend) or sometime within the next two weeks.  I just want to know b/c I want to test and I got a negative result yesterday, b/c I am assuming it might be too early, well thats what I at least hope:)