Hey Michelle,

I think I get what you are saying!!! I think from that example you gave O would have been sometime between day 4 & 5 of testing.. So you have got it right that opk predicts O to take place withn the next 24-36hrs, so the surge would be gone after testing day 4 so then the egg would be released...

Gee I hope that I am making sense! I havent really gotten enough experience on OPK but all I know is I got about 7 opks with no line on it what so ever and then 1 only +ve opk.. I didnt dare to test after that lol