Been recording my OPKs this cycle for the last few days to see what happens. Last cycle (month 1 TTC) got a positive OPK on CD20. From this pic do you think CD 16 looks positive? I didn't think it was quite there so was expecting today's to be stronger again but it's pretty much negative [hmm][sad]. DH and I have DTD for past 4 days to be on the safe side but don't even think I've ov'd yet..can OPKs go weaker and then stronger again prior to ovulation? Any help greatly received! [smile]