help me decipher this...

anyone good with charting? my chart now says CD 21, it had been saying CD 10.  My progesterone levels that were drawn on CD 23 were 8.4.  So we aren't sure if I just had a weak ovulation or if I ovulated earlier and my levels have gone down, or maybe late O and my levels haven't peaked...who knows?  Can anyone shed some light on this?

I hate being in limbo, I would much rather it be a definate yes I O or no I didn't.