This is weird I took 2 opks yesterday cd 12 and they weren't positive but they looked like they would turn positive. Every other month I get my positive opk on cd13 but today I tested twice and the lines were very light...im confused did I not ovulate or did I miss it? I used wondfos and the first response brands bc it was my first time using wondfos so I didn't know whether the results wud be accurate or not. I have normal 28 day cycles. Also this time my cm was ewcm on cd8 day after my af ended so I'm wondering if I o'd earlier. Has anyone experienced anything like this did u o very early or later during your normal cycle