For some reason I decided to test early this month. I started at CD7. When according to my apps my fertile window wasn’t until CD12.

CD7- Negative

CD8- Negative

CD9- Negative (took late at night)

CD10- Positive (took early afternoon)

CD11- Negative (FMU)

When I got the positive my apps moved up my ovulation date from July 16th to today July 12th. Basically missing my whole fertile window. But thank god I tested early! Does this even matter since all the other days were negative?