Late ovulation = late BFP??

Okay, just a question,  Trying not to get my hopes up (Oh, who am I kidding?!?) :P

I was tracking temps this cycle till about CD 18, never had a rise or a dip.  I was on antibiotics (for strep throat) and assumed that messed w my ovulation and I didn't O this cycle.  Now, I'm thinking i may have O'd late.  I remember having a good bit of EWCM a few days after I stopped tracking temps.  
So my question is, for anyone who KNOWS that they ovulated late, when did you get your BFP?  I have tested daily from 8 dpo- 15 dpo.

I am only 1 day late today, but i've *never* been late before and not pregnant. :(  I'm going nuts!!