This is the first time I’ve had a bbt drop before getting a positive opk. Ive always gotten them at the same time. I’ve also never had such a big rise so early on. The day I had a drop I had raw egg white discharge which to me was an obvious sign of fertile CM. Two days later a positive opk which I got two days in a row. What is going on? Asking for help to better understand. Thank you in advance for your help and insight.