I got pregnant when I did not think I was ovulating. I just came off my period for a few days and then I got pregnant. I thought I had my cycle down too...but sometimes things just work out differently. Try to have sex a few days before you think you ovulate..worked for me!
I was on birthcontrol pills for a year, when i came off of them i ovulated different times for 7 months, my cycles were different all those times, then i got preggo 8th month, sometimes it takes a while for body to get back on track. I basicly did opk's all those times(bought the ones from dollar store:)
Its hard to say if your preggo or not, you might want to keep doing the opks, my best freind was convinced that she was not ovulating due to being on birthcontrol for 5 years and off for a year, she swore up and down she had 28 day cycle. I told her ummm do you write them down, she said no i dont, ive always had 28 day cycle, i called her up two days ago and told her to test until her cycle comes, guess what, she got a BFP on opk, and it was on day 31, im assuming her cycle is not back to normal yet due to the birthcontrol or she just may be irregualar.
Its possible to ovulate later and earliar through your cycles,the fact you havent had a positive opk yet may mean you have missed your surge,or it hasnt happen.i would wait until your period would be due then test..some times our bodys try to ovulate but dont..until later..
well, i guess you could be preg, hence the lessening of CM and - opk's.....if you're supposed to O now, then an HPT should give a correct result!!!
good luck and lots of baby dust!!!!!