Really No "O"

So on this higher dose of Clomid, I took longer to ovulate last month.  It didn't happen until day 19.  Which is fine, they said some people take longer to get the follicles to maturity before ovulation.  Today is day 22 and still no "o".  This is either really odd or really wrong.  I've always ovulated on my own, that hasn't ever been my problem.  And now this month I either didn't ovulate or my expensive monitor didn't work.  I don't know which is the better option.  Dr ordered more bloodwork to see what's up.  I rushed in this morning before work to get it done.  More news to come...