And I appreciate your comments but like @bundl3ofjoy25 stated you have to know your body. It may not be recommended to use fmu but Google don't speak for everybody...just a generalization. 9 kids and "yyyeeaarrss" of using opks are not my uterus.
@blessed2018w9 ok what we are not going to do is go back and forth with who knows what here. The reason being...just because it was taken at 6am doesn't mean this would be a "first morning urine" and I say this because I COULD work over night and this might be the one b4 going to bed and then the surge/peak could technically be during the morning due to the time clock of your body. Regardless there is still a 12 hour window as to when to have sex.
I used the same opks when I had my first child and took them at different periods throughout the day, to see when exactly the peak point would hit...and actually got the darkest of both lines at 8am (for 2 days) throughout a 5 day span.
@blessed2018w9 actually you can use any urine as long as it's a 4-5 hour hold between each one.